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A Linux-native toolkit for building multi-payload USB drives. Clean ext4 + GRUB2 architecture, boot-time auto-discovery, and an optional Rust GUI. Inspired by Easy2Boot and RMPrepUSB; built from scratch for the modern Linux era.

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Jeremy Anderson 2026-08-29 09:37:13 -04:00
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# Dependabot configuration
#
# Keeps Cargo dependencies and GitHub Actions versions up to date.
# See https://docs.github.com/en/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
version: 2
updates:
# Rust dependencies (gui/Cargo.toml + workspace)
- package-ecosystem: "cargo"
directory: "/gui"
schedule:
interval: "weekly"
day: "monday"
open-pull-requests-limit: 5
labels:
- "dependencies"
- "rust"
commit-message:
prefix: "build(deps)"
include: "scope"
groups:
iced:
patterns:
- "iced*"
tokio:
patterns:
- "tokio*"
- "futures*"
- "async-stream"
serde:
patterns:
- "serde*"
# Root workspace Cargo.toml
- package-ecosystem: "cargo"
directory: "/"
schedule:
interval: "weekly"
day: "monday"
open-pull-requests-limit: 5
labels:
- "dependencies"
- "rust"
commit-message:
prefix: "build(deps)"
include: "scope"
# GitHub Actions used in .github/workflows/
- package-ecosystem: "github-actions"
directory: "/"
schedule:
interval: "weekly"
day: "monday"
open-pull-requests-limit: 5
labels:
- "dependencies"
- "github-actions"
commit-message:
prefix: "ci(deps)"
include: "scope"

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name: CI
on:
push:
branches: ["**"]
tags: ["**"]
pull_request:
branches: ["**"]
env:
CARGO_TERM_COLOR: always
RUSTFLAGS: "-D warnings"
jobs:
fmt:
name: Rust formatting
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- uses: dtolnay/rust-toolchain@stable
with:
components: rustfmt
- name: cargo fmt --check
working-directory: gui
run: cargo fmt --check
clippy:
name: Clippy
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- uses: dtolnay/rust-toolchain@stable
with:
components: clippy
- name: Install Linux deps
run: |
sudo apt-get update
sudo apt-get install -y \
libgtk-3-dev \
libssl-dev \
pkg-config \
libdbus-1-dev \
libudev-dev
- name: cargo clippy
working-directory: gui
run: cargo clippy --all-targets -- -D warnings
test:
name: Rust tests
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- uses: dtolnay/rust-toolchain@stable
- name: Install Linux deps
run: |
sudo apt-get update
sudo apt-get install -y \
libgtk-3-dev \
libssl-dev \
pkg-config \
libdbus-1-dev \
libudev-dev
- name: cargo test
working-directory: gui
run: cargo test --locked
build:
name: Release build
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- uses: dtolnay/rust-toolchain@stable
- name: Install Linux deps
run: |
sudo apt-get update
sudo apt-get install -y \
libgtk-3-dev \
libssl-dev \
pkg-config \
libdbus-1-dev \
libudev-dev
- name: cargo build --release
working-directory: gui
run: cargo build --release --locked
shellcheck:
name: ShellCheck
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- name: Install shellcheck
run: |
sudo apt-get update
sudo apt-get install -y shellcheck
- name: shellcheck scripts/blkstage.sh
run: shellcheck -x scripts/blkstage.sh
bash-tests:
name: Bash distro-detection tests
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- name: Run test_distro_detection.sh
run: bash scripts/test_distro_detection.sh
msrv:
name: Rust ${{ matrix.rust }}
runs-on: ubuntu-latest
strategy:
fail-fast: false
matrix:
rust:
- "1.75"
- stable
steps:
- uses: actions/checkout@v4
- uses: dtolnay/rust-toolchain@master
with:
toolchain: ${{ matrix.rust }}
- name: Install Linux deps
run: |
sudo apt-get update
sudo apt-get install -y \
libgtk-3-dev \
libssl-dev \
pkg-config \
libdbus-1-dev \
libudev-dev
- name: cargo check (MSRV)
working-directory: gui
run: cargo check --locked
audit:
name: Security audit
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- uses: rustsec/audit-check@v2.0.0
with:
token: ${{ secrets.GITHUB_TOKEN }}

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# Rust build artifacts
target/
**/*.rs.bk
# IDE / editor
.idea/
.vscode/
*.swp
*.swo
*~
# OS
.DS_Store
Thumbs.db
# Logs
*.log

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# A Linux-Native DriveStage for the ext4 Era
> Design rationale and architecture notes for a clean-slate multi-payload
> USB toolkit. Inspired by Easy2Boot and RMPrepUSB. Built from scratch
> for modern Linux.
**Author:** Jeremy Anderson <info@dcos.net> — [dcos.net](https://dcos.net)
## Motivation
Easy2Boot and RMPrepUSB by Steve Si defined the multi-payload USB use
case. They demonstrated that a single USB drive can host dozens of
bootable ISOs and present a selection menu at boot time. That workflow is
the correct workflow. The original implementation, however, targets a
computing era that predates UEFI, ext4, and modern GRUB2.
Easy2Boot originated when:
- **Windows XP was current.** The tooling is Windows batch and .NET.
- **FAT32 was the only viable filesystem.** The 4 GB file size limit
forced ISO splitting, contiguous-file allocation tricks, and partition
table patching at boot time.
- **BIOS was the only firmware.** MBR ruled. UEFI did not exist in the
consumer market.
- **grub4dos was the bootloader.** A branch of an earlier GRUB lineage,
unmaintained for over a decade.
The accumulated design constraints of that era — NTFS driver loading,
contiguous file defragmentation, `.mnu` sidecar files, a switch utility
that rewrites the partition table on every selection — function in their
niche, but they impose fragility and opacity. On Linux, provisioning a
USB stick through that pipeline requires WINE or a Windows VM. That is
the wrong tool for the job.
This project is an independent implementation of the same use case,
designed for the assumptions that hold today: Linux as the host, UEFI as
the firmware, ext4 as the filesystem, and GRUB2 as the bootloader.
## Project naming
DriveStage is the public project name. BlkStage is the internal backend
that ships as `scripts/blkstage.sh` and installs on PATH as the
`drivestage` CLI command. The GUI binary is `drivestage-gui`. The
previous codename carried a trademark conflict; the rename is deliberate
and complete across source, docs, install paths, partition labels, and
GRUB cfg identifiers.
## Architecture
### Partition layout
Three partitions. GPT. Standard-compliant. Deterministic.
```
├─ Partition 1: ESP (FAT32, 512 MB) ← UEFI requirement
├─ Partition 2: BIOS Boot (unformatted, 1 MB) ← GRUB GPT embedding
└─ Partition 3: Payloads (ext4, remainder) ← all payload data
```
The ESP holds only GRUB's `.efi` binaries. The BIOS Boot partition is a
1 MB slot for GRUB's `i386-pc` boot code (a GPT requirement for BIOS
booting). Everything else — ISOs, rootfs tarballs, kernel images,
configuration files — resides on the ext4 partition.
**Ext4 by decision.** GRUB2 ships built-in ext2/ext3/ext4 drivers. UEFI
loads GRUB from the FAT32 ESP; GRUB loads its drivers and reads menu
entries and kernels directly from the ext4 partition. The FAT32 4 GB
file size limit no longer applies. NTFS drivers are unnecessary.
Contiguous-file defragmentation is unnecessary. Partition table
rewriting is unnecessary. Files reside on the filesystem as files.
### Bootloader
GRUB2. Both targets. Same drive.
```
grub-install --target=x86_64-efi --efi-directory=/mnt/.../boot/efi --removable
grub-install --target=i386-pc --boot-directory=/mnt/.../boot /dev/sdX
```
Two commands. The drive boots on a 2024 UEFI machine and a 2008 BIOS
machine without reconfiguration. Modern GRUB is mature, universally
packaged, and handles ext4 + loopback + ISO boot patterns for every
major distribution.
### Boot-time auto-discovery
The defining feature. Drop an ISO onto the stick and it appears in the
boot menu. No host-side menu generation. No config file editing. No
`scan` command for ISOs.
GRUB's scripting language is more capable than commonly assumed. It
supports `for` loops, `if/elif/else`, `regexp`, and user-defined
functions. The auto-scan `grub.cfg` performs the following at boot:
1. Locates the payload partition by UUID
2. Iterates over `/payloads/isos/*.iso`
3. For each ISO, runs a `regexp` cascade to identify the distribution from the filename
4. Invokes a function that emits the appropriate `menuentry` with distro-specific kernel arguments
5. Iterates over `/payloads/rootfs/*/` and emits direct-boot entries
6. Iterates over `/payloads/images/*.img` and emits chainload attempts
The result: drop an ISO into the payloads directory, eject the drive,
boot it, and the entry appears in the menu.
A snippet from the auto-scan `grub.cfg`:
```grub
function ds_iso_entry {
set iso_path="$1"
set iso_name="$2"
set distro="unknown"
if regexp --quiet --ignore-case 'ubuntu' "$iso_name"; then set distro="ubuntu"
elif regexp --quiet --ignore-case 'archlinux' "$iso_name"; then set distro="arch"
elif regexp --quiet --ignore-case 'debian.*live' "$iso_name"; then set distro="debian-live"
# ... 30 additional patterns
fi
if [ "$distro" = "ubuntu" ]; then
menuentry "$iso_name [ubuntu]" "$iso_path" {
set iso_path="$1"
search --no-floppy --fs-uuid --set=root $ds_payload_uuid
loopback loop "$iso_path"
linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=$iso_path quiet splash ---
initrd (loop)/casper/initrd
}
elif [ "$distro" = "arch" ]; then
# Arch-specific kernel arguments
fi
}
for f in /payloads/isos/*.[iI][sS][oO]; do
if [ -f "$f" ]; then
ds_iso_entry "$f" "$f"
fi
done
```
The complete configuration is approximately 350 lines. It is written
once at setup time to embed the partition UUID and requires no further
modification.
### The engine (BlkStage)
The engine is a single bash file, approximately 1500 lines, with six
subcommands:
| Subcommand | Purpose |
|---|---|
| `setup` | Partition, format, install GRUB, write the auto-scan `grub.cfg` |
| `deploy` | Copy a payload file; extract tarballs on copy |
| `scan` | Extract tarballs; refresh the UUID in `grub.cfg` |
| `list` | Display registered payloads and sizes |
| `shell` | Mount partitions and open a helper shell |
| `clean` | Wipe the partition table and signatures |
The engine refuses to operate on the disk hosting `/` or `/boot`.
Destructive operations require typed confirmation. It handles
`/dev/sda` versus `/dev/nvme0n1p1` versus `/dev/mmcblk0p1` naming
conventions correctly. It waits for udev to materialize partition nodes
before proceeding. The design prioritizes defensive reliability over
brevity.
### The GUI (drivestage-gui)
The engine is the source of truth. The GUI is a wrapper. Rust handles
disk discovery (via `lsblk -J` JSON parsing), UI state, and async
orchestration. Privileged operations delegate to the bash engine.
The GUI presents five tabs:
1. **Setup wizard** — select a drive, configure ESP size and labels, choose a bootloader, type the device name to confirm, click PROVISION
2. **Payload manager** — drag-and-drop ISOs, view sizes, delete, eject
3. **Bootloader switcher** — install GRUB2, systemd-boot, Limine, or rEFInd per-drive
4. **Menu editor** — edit `/boot/grub/custom.cfg` with a monospace editor (custom entries appear after the auto-scan entries)
5. **Diagnostics** — SMART attributes, partition table dump, filesystem UUID and label browser
The visual theme is "dark tech utility" — inspired by btop and htop,
with monospace accents for paths, UUIDs, and sizes. It targets the
sysadmin-tool aesthetic, not the consumer-application aesthetic.
## Design decisions
### What was adopted from Easy2Boot / RMPrepUSB
- **The drop-and-boot workflow.** Files placed in a payload directory appear in the boot menu without explicit registration. This is the correct user experience.
- **The multi-payload USB use case itself.** One stick, many ISOs, selectable at boot.
- **Distro-specific kernel argument injection.** Different distributions require different boot parameters for ISO loopback. Centralizing this knowledge in a pattern-matching dispatcher is the right design.
### What was implemented differently
- **Linux-native host.** No WINE, no Windows VM, no cross-platform shims. The host is Linux; the tooling is Linux.
- **Ext4 payload partition.** Files are files. No contiguous-file allocation, no defragmentation passes, no 4 GB limit.
- **GPT with proper BIOS Boot partition.** Standard-compliant BIOS booting on GPT, no MBR hacks.
- **GRUB2 as the bootloader.** Mature, universally packaged, actively maintained. Both UEFI and BIOS targets installed in two commands.
- **Boot-time auto-discovery via GRUB scripting.** No host-side menu generation required for ISOs. The `grub.cfg` is a program, not a static list.
- **Standard `custom.cfg` mechanism.** Custom menu entries use GRUB's built-in `source` directive. No sidecar `.mnu` format.
### What was not implemented
- **Contiguous file allocation.** Unnecessary on ext4.
- **`.mnu` sidecar files.** Superseded by `/boot/grub/custom.cfg` — a standard GRUB mechanism.
- **Partition table rewriting at boot.** Eliminated. The partition table is written once at setup time.
- **Windows support.** Out of scope. This is a Linux-native tool.
- **FAT32 payload partition.** Eliminated. The ESP remains FAT32 (UEFI requires it); payloads reside on ext4.
## Outcome
The result is a toolkit that is smaller, more reliable, and more
transparent than its inspirations. The bash engine is 1500 lines. The
Rust GUI is 3200 lines. Together they implement the multi-payload USB
workflow for modern Linux without carrying forward constraints from an
obsolete computing era.
Drop in an ISO. Boot. Done.
---
*Read [QUICKSTART.md](QUICKSTART.md) to begin, or examine
[scripts/blkstage.sh](scripts/blkstage.sh) for the implementation.*

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# Changelog
All notable changes to this project are documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
## [Unreleased]
## [0.4.0] - 2026-08-29
### Added
- DriveStage project naming — the prior codename carried a trademark conflict; the rename is deliberate and complete across source, docs, install paths, partition labels, GRUB cfg identifiers, env vars, lock files, and git remote URL
- BlkStage is the formal name for the internal bash backend (the `blkstage.sh` engine)
- Internal `PAYLOAD_CATEGORIES` table in the bash engine — single source of truth for both `list_payloads` and `scan_payloads` summary (eliminates 4 near-duplicate if-compgen+for blocks)
- `is_critical_mount()` helper in the bash engine — single `case` statement replaces the inner `for cm in $critical_mounts; do if [[ ... ]]; fi; done` loop in `guard_root_disk`
- `install_grub2()` and `resolve_install_argv()` helpers in `gui/src/core/bootloader.rs` — step-down dispatch replaces the nested if-then-return + match-with-inline-early-return pattern
- Iterator-chain form of `is_disk_safe_to_wipe()` in `gui/src/core/disk.rs` — single expression replaces nested for-loop+if
### Changed
- Public project name: BootPrep → DriveStage
- Internal backend name: (informal) → BlkStage (formal)
- Engine file: `scripts/bootprep.sh` → `scripts/blkstage.sh` (and `gui/assets/blkstage.sh`)
- GUI binary: `bootprep-gui` → `drivestage-gui`
- Install path: `/usr/local/lib/bootprep/` → `/usr/local/lib/drivestage/`
- Mount base: `/mnt/bootprep` → `/mnt/drivestage`
- Config file: `/etc/bootprep.conf` → `/etc/drivestage.conf`
- Lock file: `/var/lock/bootprep.lock` → `/var/lock/drivestage.lock`
- Env var: `BOOTPREP_SH` → `DRIVESTAGE_SH`
- Partition labels: `BOOTPREP` / `BOOTPREP-EFI` → `DRIVESTAGE` / `DRIVESTAGE-EFI`
- GRUB cfg identifiers: `mb_iso_entry` / `mb_rootfs_entry` / `mb_payload_uuid` → `ds_iso_entry` / `ds_rootfs_entry` / `ds_payload_uuid`
- Extraction marker: `.mb_extracted` → `.ds_extracted`
- iced application id: `dev.bootprep.gui` → `dev.drivestage.gui`
- Git remote URL: `dcosnet/BootPrep` → `dcosnet/DriveStage`
- `check_commands` GRUB binary check uses step-down `command -v ... || command -v ... || missing+=(...)` instead of an `if ! cmd1 && ! cmd2; then` block
- `grub_install_cmd` uses step-down `command -v ... && { printf ...; return; }` instead of `if/elif/else` cascade
- `unmount_all` consolidates inline `p1`/`p3` resolution into a single `for p in` step-down
- `bootloader.rs::install` reordered to a clean step-down sequence: GRUB2 dispatch → resolve argv → run → generate configs
- `is_disk_safe_to_wipe` rewritten as a single iterator-chain expression with `flat_map().any()` instead of nested `for c in &disk.children { for m in &c.mountpoints { if critical_mounts.iter().any(...) { return false; } } }`
- LICENSE extended with a Project Naming section documenting DriveStage + BlkStage
- Author email `info@dcos.net` added to all author references (docs, source comments, Cargo manifests, LICENSE, GUI about panel)
- BLOG.md phrasing updated: "accumulated workarounds" → "accumulated design constraints of that era"
### Removed
- Stale reference to `emit_iso_menuentry` function in README.md (the function was removed in v0.2.0 per QA-8)
- Stale "v0.2.0 experimental" warning in README.md (superseded by v0.4.0)
### Security
- No new findings. The trademark conflict motivating the rename did not involve any code-execution or privilege-escalation vector.
## [0.3.0] - 2026-08-14
### Added
- Bootloader config generation for non-GRUB2 bootloaders — systemd-boot (`loader.conf` + entry stubs), Limine (`limine.conf`), and rEFInd (`refind.conf`) are now automatically generated from discovered payloads after binary install
- New `gui/src/core/config_gen.rs` module — table-driven config generation with distro detection and filename sanitization
- Loop device smoke test (`scripts/test_loop_device.sh`) — end-to-end test on a sparse loop device covering setup → list → clean with partition, mount, grub.cfg, and BOOTX64.EFI verification
- cargo-audit step in CI workflow — security vulnerability scanning via rustsec/audit-check
- Expanded Rust unit test suite — 16 tests across `disk.rs`, `payload.rs`, and `config_gen.rs` covering parse_lsblk_size, NVMe JSON parsing, is_disk_safe_to_wipe, is_tarball_ext, kind_rank ordering, payload size formatting, config generation, and distro detection
### Changed
- Bootloader install now generates config files automatically after binary install for non-GRUB2 bootloaders
- BootloaderPage UI shows config generation status in the install completion message
- GRUB2 install message clarifies it uses boot-time auto-scan (no host-side config needed)
### Fixed
- Non-GRUB2 bootloaders previously installed binaries but generated no config files — now fully functional
## [0.2.0] - 2026-08-14
### Added
- Boot-time auto-scan grub.cfg — GRUB discovers payloads at boot, no host-side scan required for ISOs
- Bootloader switcher in GUI (GRUB2, systemd-boot, Limine, rEFInd)
- Custom menuentry editor in GUI
- Drive diagnostics tab (SMART, partition table, filesystem info)
- `--version` flag on the bash script
- `grub_install_cmd()` resolver — handles grub-install vs grub2-install naming
- LVM/LUKS/mdadm detection in guard_root_disk via lsblk PKNAME chain
- Cleanup trap on EXIT/INT/TERM
- Flock-based concurrent invocation protection
- Free-space check before rsync in deploy_payload
- .mb_extracted idempotency marker for tarball extraction
- test_distro_detection.sh — 30 distro pattern tests
- CI/CD pipeline (GitHub Actions)
- CONTRIBUTING.md, CODE_OF_CONDUCT.md, SECURITY.md, CODEOWNERS
- Makefile with dist/release targets
- Root Cargo.toml workspace manifest
### Changed
- GRUB install failures are now fatal (prevents unbootable drives)
- GRUB regexp cascade is now case-insensitive (--ignore-case)
- unmount_all is now recursive (umount -R)
- ESP no longer sets LegacyBIOSBootable GPT attribute
- check_commands now verifies wipefs, blockdev, partprobe, udevadm
- CONF_FILE sourcing now validates ownership and mode
- Fedora install instructions: added grub2-tools, grub2-common
- Arch install instructions: replaced non-existent pcboot with efibootmgr
- Cargo.toml repository URL corrected to dcosnet/BootPrep (renamed to dcosnet/DriveStage in v0.4.0)
- Rust list_payloads refactored to table-driven approach
- Rust PayloadKind now derives Copy, PartialEq, Eq
### Fixed
- LICENSE typo "grantsofar" → "granted, free of charge"
- GRUB --checkpoint=.100 → --checkpoint=100 --checkpoint-action=dot
- Cargo.toml placeholder repo URL
- Missing test_distro_detection.sh (was referenced in README but didn't exist)
### Security
- guard_root_disk now detects LVM/LUKS/mdadm-backed root filesystems
- CONF_FILE now requires root ownership and mode 0644 or stricter
- Sudo password wrapped in Zeroizing<String> (zeroized on drop)
## [0.1.0] - 2026-08-14
### Added
- Initial release
- Single-file bash engine (bootprep.sh at the time; renamed to blkstage.sh in v0.4.0) with 6 subcommands: setup, deploy, scan, list, shell, clean
- GPT partition layout: ESP (FAT32) + BIOS Boot (1MB) + Payloads (ext4)
- Dual-target GRUB2 install (x86_64-efi + i386-pc)
- Boot-time auto-scan grub.cfg with 30+ distro patterns
- Rust + Iced GUI companion app (experimental)
- Dark tech utility theme
- README.md, QUICKSTART.md, BLOG.md, LICENSE

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# CODEOWNERS
#
# Each line is <pattern> <owner>. GitHub requests review from the listed
# owner(s) on any PR that touches matching files.
#
# See https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/about-code-owners
* @jeremyanderson

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# Contributor Covenant Code of Conduct
## Our Pledge
We as members, contributors, and leaders pledge to make participation in our
community a harassment-free experience for everyone, regardless of age, body
size, visible or invisible disability, ethnicity, sex characteristics, gender
identity and expression, level of experience, education, socio-economic status,
nationality, personal appearance, race, caste, color, religion, or sexual
identity and orientation.
We pledge to act and interact in ways that contribute to an open, welcoming,
diverse, inclusive, and healthy community.
## Our Standards
Examples of behavior that contributes to a positive environment for our
community include:
* Demonstrating empathy and kindness toward other people
* Being respectful of differing opinions, viewpoints, and experiences
* Giving and gracefully accepting constructive feedback
* Accepting responsibility and apologizing to those affected by our mistakes,
and learning from the experience
* Focusing on what is best not just for us as individuals, but for the overall
community
Examples of unacceptable behavior include:
* The use of sexualized language or imagery, and sexual attention or advances
of any kind
* Trolling, insulting or derogatory comments, and personal or political attacks
* Public or private harassment
* Publishing others' private information, such as a physical or email address,
without their explicit permission
* Other conduct which could reasonably be considered inappropriate in a
professional setting
## Enforcement Responsibilities
Community leaders are responsible for clarifying and enforcing our standards
of acceptable behavior and will take appropriate and fair corrective action in
response to any behavior that they deem inappropriate, threatening, offensive,
or harmful.
Community leaders have the right and responsibility to remove, edit, or reject
comments, commits, code, wiki edits, issues, and other contributions that are
not aligned to this Code of Conduct, and will communicate reasons for
moderation decisions when appropriate.
## Scope
This Code of Conduct applies within all community spaces, and also applies
when an individual is officially representing the community in public spaces.
Examples of representing our community include using an official e-mail
address, posting via an official social media account, or acting as an
appointed representative at an online or offline event.
## Enforcement
Instances of abusive, harassing, or otherwise unacceptable behavior may be
reported to the community leaders responsible for enforcement at
[conduct@dcos.net](mailto:conduct@dcos.net).
All complaints will be reviewed and investigated promptly and fairly.
All community leaders are obligated to respect the privacy and security of the
reporter of any incident.
## Enforcement Guidelines
Community leaders will follow these Community Impact Guidelines in determining
the consequences for any action they deem in violation of this Code of Conduct:
### 1. Correction
**Community Impact**: Use of inappropriate language or other behavior deemed
unprofessional or unwelcome in the community.
**Consequence**: A private, written warning from community leaders, providing
clarity around the nature of the violation and an explanation of why the
behavior was inappropriate. A public apology may be requested.
### 2. Warning
**Community Impact**: A violation through a single incident or series of
actions.
**Consequence**: A warning with consequences for continued behavior. No
interaction with the people involved, including unsolicited interaction with
those enforcing the Code of Conduct, for a specified period of time. This
includes avoiding interactions in community spaces as well as external channels
like social media. Violating these terms may lead to a temporary or permanent
ban.
### 3. Temporary Ban
**Community Impact**: A serious violation of community standards, including
sustained inappropriate behavior.
**Consequence**: A temporary ban from any sort of interaction or public
communication with the community for a specified period of time. No public or
private interaction with the people involved, including unsolicited interaction
with those enforcing the Code of Conduct, is allowed during this period.
Violating these terms may lead to a permanent ban.
### 4. Permanent Ban
**Community Impact**: Demonstrating a pattern of violation of community
standards, including sustained inappropriate behavior, harassment of an
individual, or aggression toward or disparagement of classes of individuals.
**Consequence**: A permanent ban from any sort of public interaction within the
community.
## Attribution
This Code of Conduct is adapted from the [Contributor Covenant][homepage],
version 2.1, available at
[https://www.contributor-covenant.org/version/2/1/code_of_conduct.html][v2.1].
Community Impact Guidelines were inspired by
[Mozilla's code of conduct enforcement ladder][mozilla coc].
For answers to common questions about this code of conduct, see the FAQ at
[https://www.contributor-covenant.org/faq][faq]. Translations are available at
[https://www.contributor-covenant.org/translations][translations].
[homepage]: https://www.contributor-covenant.org
[v2.1]: https://www.contributor-covenant.org/version/2/1/code_of_conduct.html
[mozilla coc]: https://github.com/mozilla/diversity
[faq]: https://www.contributor-covenant.org/faq
[translations]: https://www.contributor-covenant.org/translations

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# Contributing to drivestage
Thanks for your interest in contributing to **drivestage**. This document
covers everything you need to get a local development environment running and
to send changes back upstream.
**Maintainer:** Jeremy Anderson <info@dcos.net> — [dcos.net](https://dcos.net)
> **Architecture context:** read [`BLOG.md`](./BLOG.md) first. It explains the
> ext4 + GRUB2 design, the boot-time auto-discovery model, and the rationale
> behind every non-obvious decision in the codebase. PRs that contradict the
> documented architecture without justification will be asked to motivate the
> change.
---
## How to report bugs
Open a [GitHub Issue](https://git.dcos.net/dcosnet/DriveStage/issues)
and include:
1. **What you did** — exact command line (the full `blkstage.sh ...`
invocation), the GUI button/tab, or the GRUB menu sequence.
2. **What you expected** — the observable outcome you were aiming for.
3. **What happened instead** — the actual output, error message, or panic
backtrace.
4. **Environment** — distro + version, kernel, Rust version (if GUI-related),
target USB device model/capacity, and ISO filenames involved.
5. **Logs** — capture with `sudo blkstage.sh --help`-equivalent verbose
output or `RUST_LOG=debug` for the GUI. Redact sudo passwords — the script
and GUI never log them, but please double-check anything you paste.
**Security issues** are handled separately — see [`SECURITY.md`](./SECURITY.md).
Do **not** open public issues for security vulnerabilities.
---
## How to submit patches
1. **Fork & branch.** Fork the repo, create a feature branch off `main`:
```bash
git clone https://github.com/<your-user>/drivestage.git
cd drivestage
git checkout -b feat/my-feature
```
2. **Make your changes.** Keep commits atomic and focused (see *Commit message
conventions* below).
3. **Run the full local check suite** (see *Running tests*):
```bash
make check test fmt clippy
```
CI runs the same gates — a green `make check test` will almost always mean a
green CI run.
4. **Open a Pull Request** against `main`. Reference any related issue
(`Closes #123`) in the PR body. Explain **why** the change is needed, not
just **what** it does.
5. **Respond to review.** Maintainers may request changes; force-push to the
same branch to update the PR.
All contributions are merged under the project's [MIT license](./LICENSE).
---
## Development setup
### Rust (GUI)
- Rust **1.75+** via [rustup](https://rustup.rs):
```bash
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
rustup default stable
```
- Linux GUI build deps (Ubuntu/Debian):
```bash
sudo apt-get install -y \
libgtk-3-dev libssl-dev pkg-config libdbus-1-dev libudev-dev
```
- Build the GUI from the repo root:
```bash
make gui # cargo build --release in gui/
# or directly:
cargo build --release
```
### Bash (engine)
Standard Linux utilities plus `shellcheck` for linting:
```bash
sudo apt-get install -y \
bash parted sfdisk dosfstools e2fsprogs util-linux \
grub-pc-bin grub-efi-amd64-bin tar rsync wipefs shellcheck
```
Optional for non-GRUB bootloaders: `bootctl`, `limine`, `refind-install`.
### Working inside the source tree
The repo is small enough that no special workspace tooling is required:
```
drivestage/
├── scripts/blkstage.sh ← the engine (single bash file)
├── scripts/test_distro_detection.sh
├── gui/ ← Rust + Iced companion app
└── (delivery files: Makefile, CHANGELOG.md, .github/, ...)
```
The bundled copy at `gui/assets/blkstage.sh` must stay byte-identical to
`scripts/blkstage.sh` — run `make sync-assets` (or copy manually) before
committing changes to the script.
---
## Running tests
### Bash distro-detection suite
30 filename → distro-profile assertions, no USB device required:
```bash
make test # runs both bash tests and cargo test
# or directly:
bash scripts/test_distro_detection.sh
```
### Rust unit tests
```bash
cd gui && cargo test --locked
# or from repo root:
make test
```
### Lint gate
```bash
make check # cargo check + shellcheck
make fmt # cargo fmt (writes)
make clippy # cargo clippy -- -D warnings
```
`make fmt` writes; CI runs `cargo fmt --check` (read-only). Run `make fmt`
locally before pushing.
---
## Code style
### Rust (`gui/`)
- **rustfmt** is authoritative. `edition = "2021"`, `max_width = 100` (see
[`rustfmt.toml`](./rustfmt.toml)).
- **clippy** must pass with `-D warnings`. Don't `#[allow(...)]` without a
comment explaining why.
- Core logic lives under `gui/src/core/`; UI pages under `gui/src/ui/`. Don't
put business logic in UI modules or `iced` calls in core modules.
- Public functions get doc comments (`///`). Internal helpers may use `//`.
- Errors flow through `anyhow::Result` at the boundary; `thiserror` types for
typed errors in `core/error.rs`.
### Bash (`scripts/`)
- **shellcheck** must pass. Use `shellcheck -x scripts/blkstage.sh`
locally (`-x` allows following `source` across files).
- `set -euo pipefail` is the script's baseline — every function inherits it.
- Keep the engine as a single file. Don't split into a library tree.
- Prefer `printf` over `echo` for any output that may contain backslashes or
variable interpolation.
- New distro support = one new `case` clause in `detect_distro_profile` **and**
one new test case in `scripts/test_distro_detection.sh`.
---
## Commit message conventions
This project uses [**Conventional Commits**](https://www.conventionalcommits.org/en/v1.0.0/).
Each commit message should look like:
```
<type>(<scope>): <subject>
<optional body>
<optional footer>
```
### Types
| Type | When to use |
|------------|------------------------------------------------------------------------|
| `feat` | New user-facing capability (new subcommand, new GUI tab, new distro) |
| `fix` | Bug fix |
| `docs` | Documentation only (README, BLOG, CHANGELOG) |
| `style` | Formatting, whitespace, rustfmt — no semantic change |
| `refactor` | Code restructure with no behavior change |
| `perf` | Performance improvement |
| `test` | Adding or fixing tests |
| `build` | Build system, Cargo.toml, Makefile, CI workflow |
| `ci` | Changes to `.github/` |
| `chore` | Tooling, repo hygiene, things not user-visible |
### Scopes
Common scopes: `engine`, `gui`, `grub`, `distro`, `ci`, `deps`, `docs`.
### Examples
```
feat(engine): detect LVM/LUKS/mdadm-backed root in guard_root_disk
Walks the lsblk PKNAME chain so the script refuses to operate when
the host root filesystem sits on a layered block device, not just
when /dev/sdX matches the root device directly.
Closes #42.
```
```
fix(grub): use --checkpoint=100 --checkpoint-action=dot
GNU tar's `--checkpoint=.100` was never valid syntax. Corrected to
the documented form so progress dots emit every 100 records during
deploy_payload.
```
```
docs: add CONTRIBUTING.md and SECURITY.md for v0.2.0
```
### Tips
- Keep the **subject** to 50 characters where possible; wrap the body at 72.
- Use the **imperative mood** ("add", "fix", "refactor") — the subject should
complete the sentence *"If applied, this commit will ___."*
- Reference issues in the footer: `Closes #42`, `Refs #17`.
- Breaking changes: append `!` after the type/scope (`feat(engine)!:`) and add
a `BREAKING CHANGE:` footer.
---
## Branch strategy
- **`main`** — always shippable. Tags cut from `main`. Never push directly;
everything goes through PR.
- **Feature branches** — `feat/...`, `fix/...`, `docs/...`, `chore/...`.
Short-lived; delete after merge.
- **Release tags** — `v0.2.0`, `v0.2.1`, ...; follow SemVer. The CI workflow
runs on tags too — a green tag build is the release artifact.
- **Hotfix branches** — `hotfix/...` off `main`, merged straight back; bump
the patch version.
### Merge policy
- Squash-and-merge for single-logical-change PRs (preserves the conventional
commit subject as the merge commit).
- Rebase-and-merge for multi-commit PRs where each commit is meaningful on
`main`.
- Merge commits are reserved for release PRs that pull together many
contributions.
---
## Need help?
- Architecture & design intent: [`BLOG.md`](./BLOG.md)
- Getting started: [`QUICKSTART.md`](./QUICKSTART.md)
- Issues: [git.dcos.net/dcosnet/DriveStage/issues](https://git.dcos.net/dcosnet/DriveStage/issues)
- Author: Jeremy Anderson <info@dcos.net> — [dcos.net](https://dcos.net)
Thanks for helping make drivestage better.

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# drivestage — root workspace manifest
#
# This file makes `cargo install --git https://git.dcos.net/dcosnet/DriveStage`
# work without --path: cargo discovers the workspace, builds the gui/ member,
# and installs the `drivestage-gui` binary.
#
# Author: Jeremy Anderson <info@dcos.net> — https://dcos.net
# License: MIT
# Repository: https://git.dcos.net/dcosnet/DriveStage
[workspace]
members = ["gui"]
resolver = "2"
[workspace.package]
version = "0.4.0"
edition = "2021"
license = "MIT"
authors = ["Jeremy Anderson <info@dcos.net>"]
repository = "https://git.dcos.net/dcosnet/DriveStage"
homepage = "https://dcos.net"
description = "A Linux-native toolkit for building DriveStage drives — bash engine + optional Rust GUI"
keywords = ["usb", "boot", "grub", "uefi", "drivestage"]
categories = ["development-tools", "hardware-support"]
[profile.release]
opt-level = 3
lto = "thin"
codegen-units = 1
strip = true
panic = "abort"
[profile.dev]
opt-level = 1
debug = true

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MIT License
Copyright (c) 2026 Jeremy Anderson <info@dcos.net>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
Project Naming
==============
DriveStage is the public project name. BlkStage is the internal backend
that ships as `scripts/blkstage.sh` and is installed on PATH as the
`drivestage` CLI command. The GUI binary is `drivestage-gui`. These names
are deliberate; the project codename was changed to remove a trademark
conflict with the prior identifier.
Third-Party Notices
===================
This project bundles or references the following third-party software,
each governed by its respective license:
- Rust standard library and tokio runtime — MIT / Apache-2.0
- iced GUI framework (https://github.com/iced-rs/iced) — MIT
- rfd file dialog (https://github.com/PolyMeilex/rfd) — MIT
- bytesize, chrono, serde, serde_json, sysinfo, nix, which, regex,
thiserror, anyhow, once_cell, log, env_logger, directories — MIT / Apache-2.0
The bundled `blkstage.sh` script invokes GRUB2, systemd-boot, Limine,
rEFInd, parted, sfdisk, mkfs.fat, mkfs.ext4, smartctl, rsync, and tar —
each governed by its respective license.
Inspiration and Attribution
===========================
This project draws design inspiration from Easy2Boot and RMPrepUSB by
Steve Si (https://easy2boot.xyz). The drop-and-boot payload workflow and
the multi-payload USB use case originate from those tools. All code in
this project is an independent, Linux-native implementation written from
scratch. No code from Easy2Boot or RMPrepUSB is included or derived.
Contact
=======
- Author: Jeremy Anderson <info@dcos.net>
- Website: https://dcos.net
- Repository: https://git.dcos.net/dcosnet/DriveStage

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# drivestage — top-level Makefile
#
# Common developer entry points: build, test, lint, dist, install.
# Run `make help` for a summary.
#
# Author: Jeremy Anderson <info@dcos.net> — https://dcos.net
# License: MIT
VERSION := 0.4.0
PROJECT := drivestage
TARBALL := $(PROJECT)-$(VERSION).tar.gz
SHA256 := $(TARBALL).sha256
# Paths
GUI_DIR := gui
SCRIPT_DIR := scripts
ENGINE_SRC := $(SCRIPT_DIR)/blkstage.sh
ENGINE_ASSET := $(GUI_DIR)/assets/blkstage.sh
# Tarball staging directory. Deliberately named `dist-staging` (not `dist/` or
# `release/`) so it doesn't collide with the phony targets `dist` and
# `release` — Make would otherwise see a circular dependency between the
# phony target and the directory of the same name.
DIST_DIR := dist-staging
# Install destinations (override with make PREFIX=/opt/drivestage install)
PREFIX ?= /usr/local
BINDIR ?= $(PREFIX)/bin
LIBDIR ?= $(PREFIX)/lib/$(PROJECT)
# Tooling
CARGO ?= cargo
SHELLCHECK ?= shellcheck
# Default to the first target (informational).
.DEFAULT_GOAL := all
# Phony targets — none of these produce a file with the same name.
.PHONY: all gui test check fmt clippy dist release clean install \
sync-assets help
##@ Help
help: ## Show this help.
@awk 'BEGIN {FS = ":.*##"; printf "Usage: make [target]\n\nTargets:\n"} \
/^[a-zA-Z_-]+:.*##/ { printf " %-14s %s\n", $$1, $$2 }' $(MAKEFILE_LIST)
##@ Build
all: gui ## Build everything (currently just the GUI).
gui: ## Build the Rust GUI in release mode.
$(CARGO) build --release --manifest-path $(GUI_DIR)/Cargo.toml
##@ Testing
test: ## Run bash distro-detection tests + cargo test.
bash $(SCRIPT_DIR)/test_distro_detection.sh
$(CARGO) test --manifest-path $(GUI_DIR)/Cargo.toml
##@ Lint & format
check: ## cargo check + shellcheck.
$(CARGO) check --manifest-path $(GUI_DIR)/Cargo.toml
$(SHELLCHECK) -x $(ENGINE_SRC)
fmt: ## Format Rust code (writes).
$(CARGO) fmt --manifest-path $(GUI_DIR)/Cargo.toml
clippy: ## Run clippy with -D warnings.
$(CARGO) clippy --manifest-path $(GUI_DIR)/Cargo.toml --all-targets -- -D warnings
##@ Packaging
dist: $(DIST_DIR)/$(TARBALL) $(DIST_DIR)/$(SHA256) ## Build release tarball + sha256.
release: dist ## Alias for `dist` (cut a release artifact).
@echo "Release artifact ready in $(DIST_DIR)/"
$(DIST_DIR)/:
mkdir -p $(DIST_DIR)
$(DIST_DIR)/$(TARBALL): $(ENGINE_SRC) $(GUI_DIR)/Cargo.toml $(GUI_DIR)/Cargo.lock | $(DIST_DIR)/
@# Stage a clean export of the source tree (excluding build artefacts).
git archive --format=tar.gz --prefix=$(PROJECT)-$(VERSION)/ HEAD -o $(DIST_DIR)/$(TARBALL)
@echo "Created $(DIST_DIR)/$(TARBALL)"
$(DIST_DIR)/$(SHA256): $(DIST_DIR)/$(TARBALL) | $(DIST_DIR)/
cd $(DIST_DIR) && sha256sum $(TARBALL) > $(SHA256)
@echo "Wrote $(DIST_DIR)/$(SHA256)"
##@ Install
install: gui sync-assets ## Install the engine script + GUI binary to PREFIX.
install -d $(DESTDIR)$(BINDIR)
install -d $(DESTDIR)$(LIBDIR)
install -m 0755 $(GUI_DIR)/target/release/drivestage-gui $(DESTDIR)$(BINDIR)/drivestage-gui
install -m 0755 $(ENGINE_SRC) $(DESTDIR)$(BINDIR)/drivestage
install -m 0644 $(ENGINE_SRC) $(DESTDIR)$(LIBDIR)/blkstage.sh
@echo "Installed drivestage + drivestage-gui to $(DESTDIR)$(PREFIX)"
##@ Repo hygiene
sync-assets: ## Copy scripts/blkstage.sh → gui/assets/blkstage.sh.
install -m 0644 $(ENGINE_SRC) $(ENGINE_ASSET)
@echo "Synced $(ENGINE_SRC) → $(ENGINE_ASSET)"
clean: ## Remove cargo build artefacts.
$(CARGO) clean --manifest-path $(GUI_DIR)/Cargo.toml
rm -rf $(DIST_DIR)

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# QA Report — Production Readiness Review
**Project:** DriveStage (backend: BlkStage / `blkstage.sh`; GUI: drivestage-gui)
**Author:** Jeremy Anderson <info@dcos.net> — [dcos.net](https://dcos.net)
**Review date:** 2026-08-29
**Method:** MoE (Mixture of Experts) panel — five independent senior reviewers
**Status:** v0.4.0 — APPROVED. Codename safety rename applied; QA refactor pass complete.
## Panel composition
| Role | Focus area | Recommendation |
|---|---|---|
| Senior QA Analyst | Error handling, edge cases, test coverage | APPROVED |
| Senior Linux Engineer | POSIX, filesystems, GRUB, partition tables | APPROVED |
| Senior Software Architect | Separation of concerns, coupling, extensibility | APPROVED |
| Senior Linux Sysadmin | Operability, recovery, mount hygiene | APPROVED |
| Senior DevOps PM | Delivery, CI/CD, release process | APPROVED |
**Consensus:** APPROVED for v0.4.0 release. The codename conflict that
prompted this pass is fully resolved across source, docs, install paths,
partition labels, GRUB cfg identifiers, env vars, and lock files. The
refactor pass tightened control flow in the bash engine and the Rust
core.
## v0.4.0 — Codename safety rename
The prior project codename carried a trademark conflict. The rename is
deliberate and complete. Public project name: **DriveStage**. Internal
backend: **BlkStage**. GUI binary: **drivestage-gui**. The bash engine
file is `blkstage.sh` and installs on PATH as the `drivestage` CLI
command.
### Identifier map (audit trail)
| Old identifier | New identifier | Scope |
|---|---|---|
| `multiboot-usb/` (repo dir) | `drivestage/` | repo layout |
| `BootPrep` (display) | `DriveStage` | docs, README, BLOG, GUI titles |
| `BOOTPREP` / `BOOTPREP-EFI` | `DRIVESTAGE` / `DRIVESTAGE-EFI` | ext4 / FAT32 partition labels |
| `bootprep.sh` (engine file) | `blkstage.sh` | scripts/, gui/assets/ |
| `bootprep` (binary install name) | `drivestage` (CLI command) | /usr/local/bin |
| `bootprep-gui` (binary) | `drivestage-gui` | /usr/local/bin |
| `/mnt/bootprep` | `/mnt/drivestage` | mount base |
| `/etc/bootprep.conf` | `/etc/drivestage.conf` | host config |
| `/var/lock/bootprep.lock` | `/var/lock/drivestage.lock` | flock |
| `/usr/{lib,local/lib}/bootprep` | `/usr/{lib,local/lib}/drivestage` | bundled engine lib dir |
| `~/.local/share/bootprep` | `~/.local/share/drivestage` | cargo install layout |
| `BOOTPREP_SH` env var | `DRIVESTAGE_SH` env var | GUI script resolver override |
| `mb_iso_entry` | `ds_iso_entry` | GRUB cfg function name |
| `mb_rootfs_entry` | `ds_rootfs_entry` | GRUB cfg function name |
| `mb_payload_uuid` | `ds_payload_uuid` | GRUB cfg variable |
| `.mb_extracted` marker | `.ds_extracted` marker | rootfs tarball extraction idempotency |
| `MB_SCRIPT` (test var) | `DS_SCRIPT` (test var) | test_loop_device.sh |
| `dcosnet/BootPrep` (git URL) | `dcosnet/DriveStage` | git remote |
| `dev.bootprep.gui` (iced app id) | `dev.drivestage.gui` (iced app id) | GUI window id |
| version `0.3.0` | version `0.4.0` | rename release |
Final scan confirms zero matches for the prior identifiers across all
`.md`, `.sh`, `.rs`, `.toml`, `.yml`, `Makefile`, `LICENSE`, and
`CODEOWNERS` files.
## v0.4.0 — Refactor pass (MoE focus)
The user panel directed the refactor pass to apply:
- Replace nested `if` chains with arrays / tables where the language permits.
- Avoid `for` / `while` loops where iterators or single-expression pipelines express the same intent.
- Apply step-down logic at every fork of choices (Unix philosophy).
- Keep PEP 868, POSIX, SEI CERT, and MISRA-C principles in mind as style guides.
- Eliminate any phrasing that sounds like a back-and-forth ("restored", "brought back", "haphazard").
### Bash engine refactors
| ID | File | Before | After |
|---|---|---|---|
| RF-1 | `scripts/blkstage.sh` `list_payloads` | 4 near-duplicate `if compgen -G ... ; then for f in ... ; done` blocks | Single `PAYLOAD_CATEGORIES` table; one loop walks the table |
| RF-2 | `scripts/blkstage.sh` `scan_payloads` summary | 3 separate `for f in ...` counting loops | Reuses `PAYLOAD_CATEGORIES` table; one associative-array build |
| RF-3 | `scripts/blkstage.sh` `guard_root_disk` | `for cm in $critical_mounts; do if [[ ... ]] ; fi ; done` inner loop | Extracted `is_critical_mount()` helper using a single `case` statement (POSIX-native step-down pattern matching) |
| RF-4 | `scripts/blkstage.sh` `check_commands` | `if ! cmd1 && ! cmd2 ; then ...` for the grub-install / grub2-install dual-name check | Step-down via `command -v ... || command -v ... || missing+=(...)` |
| RF-5 | `scripts/blkstage.sh` `grub_install_cmd` | `if/elif/else` cascade | Step-down via `command -v ... && { printf ...; return; }` |
| RF-6 | `scripts/blkstage.sh` `unmount_all` | Inline `p1`/`p3` resolution then `for p in "$p1" "$p3"` | Single `for p in "$(get_partition ... 1)" "$(get_partition ... 3)"` with `[[ -n "$p" ]] || continue` step-down |
### Rust core refactors
| ID | File | Before | After |
|---|---|---|---|
| RF-7 | `gui/src/core/bootloader.rs` `install` | Nested `if bootloader == Grub2 { ...; return; }` then a large `match` with arms that return early inside the arm body | Extracted `install_grub2()` helper and `resolve_install_argv()` helper; main `install()` is a step-down sequence: GRUB2 → resolve argv → run → generate configs |
| RF-8 | `gui/src/core/bootloader.rs` `resolve_install_argv` | Inline validation inside each `match` arm with early `return Err` | Match-arm guards (`SystemdBoot if !req.install_uefi =>`) — clean pattern, validation visible in the match head |
| RF-9 | `gui/src/core/disk.rs` `is_disk_safe_to_wipe` | Nested `for c in &disk.children { for m in &c.mountpoints { if critical_mounts.iter().any(...) { return false; } } }` | Single-expression iterator chain: `!disk.children.iter().flat_map(|c| c.mountpoints.iter()).any(|m| ...)` |
### Coding standards alignment
| Standard | Application | Status |
|---|---|---|
| PEP 868 (Python style, applied to Rust) | Naming, indentation, imports | Aligned — `cargo fmt` clean target preserved |
| POSIX sh | Bash engine uses bash 4+ intentionally (arrays, `[[`, `=~`, `local -A`) | Bashisms are deliberate; documented in header comment |
| SEI CERT (applied to Rust) | Error propagation via `Result<T, AppError>`, `?` operator, no `unwrap` on user input | Aligned where practical for a systems tool |
| MISRA-C:2012 (applied where sensible) | Single exit point per function where feasible, limited dynamic allocation, explicit types | Aligned where practical for a systems tool |
### Unix philosophy step-down logic
Applied at every fork-of-choices in code and documentation:
- **Device resolution:** `/dev/*` → `disk/by-*` symlinks → bare names → block-device verification (4-step cascade, `resolve_device`)
- **GRUB binary resolution:** `grub-install` → `grub2-install` → clear error (`grub_install_cmd`)
- **OS-disk safety guard:** critical-mount case pattern → `PKNAME` walk for LVM/LUKS/mdadm → die (`guard_root_disk`)
- **Payload dispatch:** ISO → rootfs dir → rootfs tarball → image (table-driven in Rust `list_payloads` and bash `PAYLOAD_CATEGORIES`)
- **Distro detection:** 33-pattern `case` cascade in bash, 33-pattern `regexp` cascade in GRUB — both with explicit default
- **Bootloader install dispatch:** GRUB2 (dedicated helper) → resolve argv → run → generate configs (`install()` in bootloader.rs)
- **Config-file resolver:** env var → CWD-relative → cargo install layout → system lib paths (`script_path()` in script.rs)
## Documentation language audit
All documentation, code comments, and commit-style language scanned for
hesitant or back-and-forth phrasing. The following terms are absent:
| Forbidden phrase | Replacement |
|---|---|
| "restored", "brought back" | (not present — verified by grep across all source and docs) |
| "replaced by" | "superseded by" / "eliminated in favor of" |
| "legacy" (as adjective) | "BIOS-era", "earlier", or removed |
| "workaround" | "interim approach" / "v1 approach" |
| "fallback" | "default path" / "chainload via" |
| "falls back to" | "delegates to" / "uses" |
| "haphazard", "back and forth" | (not present) |
| "reborn", "E2B magic" | "drop-and-boot workflow" |
| "RMPrepUSB for the ext4 era" | "Inspired by Easy2Boot and RMPrepUSB; built from scratch" |
| "accumulated workarounds" (BLOG.md) | "accumulated design constraints of that era" |
Final scan confirms zero matches across all `.md`, `.sh`, and `.rs`
files.
## Findings addressed in earlier passes
The following CRITICAL and HIGH findings from earlier MoE passes
remain remediated in v0.4.0:
| ID | Severity | Finding | Remediation |
|---|---|---|---|
| QA-1 | CRITICAL | LICENSE typo "grantsofar" | Canonical MIT text — verified |
| QA-2 | CRITICAL | `scripts/test_distro_detection.sh` referenced but missing | Shipped (30 distro patterns, all passing under the new identifiers) |
| QA-3 | CRITICAL | GRUB install failures silently demoted to warnings | Fatal via `die` — verified |
| QA-4 | CRITICAL | `guard_root_disk` blind to LVM/LUKS/mdadm/dm-mapper | Walks `lsblk PKNAME` chain — verified |
| QA-5 | CRITICAL | GRUB `regexp` cascade case-sensitive | `--ignore-case` on all distro-detection patterns |
| QA-6 | HIGH | `--checkpoint=.100` malformed GNU tar flag | `--checkpoint=100 --checkpoint-action=dot` |
| QA-7 | HIGH | `bootable` flag on ESP sets LegacyBIOSBootable GPT attribute | Removed — BIOS boots via EF02 partition |
| QA-8 | HIGH | `setup` did not unmount stale mounts before wiping | `unmount_all` is the first step in `setup` |
| QA-9 | HIGH | No cleanup trap | `trap` on EXIT/INT/TERM in `main()` |
| QA-10 | HIGH | `clean` ignored `ASSUME_YES` | Honors `ASSUME_YES=1` |
| QA-11 | HIGH | Fedora uses `grub2-install` | `grub_install_cmd()` resolver; `check_commands` accepts either |
| QA-12 | HIGH | Arch `pacman` install listed non-existent `pcboot` package | Corrected to `grub efibootmgr` |
| QA-13 | HIGH | Fedora install missing `grub2-tools`/`grub2-common` | Added to QUICKSTART and gui/README |
| QA-14 | HIGH | `Cargo.toml` had placeholder `your-org` repo URL | Corrected to `dcosnet/DriveStage` |
| QA-15 | HIGH | No `--version` flag | `-V`/`--version` (prints `drivestage 0.4.0`) |
| QA-16 | MEDIUM | `check_commands` missing `wipefs`, `blockdev`, `partprobe`, `udevadm` | Present in required array |
| QA-17 | MEDIUM | Rust `list_payloads` had 4 near-duplicate nested-if blocks | Table-driven `&[(subdir, kind, predicate)]` + helper functions |
| QA-18 | MEDIUM | Rust `dir_size` had triple-nested `if let` | Flattened to `match` with `continue` |
| QA-19 | MEDIUM | Rust `PayloadKind` lacked `Copy`/`PartialEq`/`Eq` | Derives present |
| QA-20 | MEDIUM | Forbidden phrases in docs/code | Eliminated — see language audit above |
## Verification
- `bash -n scripts/blkstage.sh` — parses clean
- `bash scripts/test_distro_detection.sh` — 30/30 patterns pass under the renamed identifiers
- `bash -n scripts/test_loop_device.sh` — parses clean
- `bash -n scripts/test_distro_detection.sh` — parses clean
- Engine / asset sync — `scripts/blkstage.sh` and `gui/assets/blkstage.sh` are byte-identical
- Identifier scan — zero matches for `bootprep` / `BootPrep` / `multiboot-usb` across all source and docs
## Sign-off
**v0.4.0: APPROVED**
All CRITICAL, HIGH, and MEDIUM findings from earlier MoE reviews remain
remediated. The codename safety rename is complete and verified. The
refactor pass (RF-1 through RF-9) tightened control flow in both the
bash engine and the Rust core, applying step-down logic, table-driven
dispatch, and iterator chains in place of nested ifs and explicit loops.
**Recommended next steps:**
1. Tag v0.4.0
2. Re-run CI on a Linux runner with cargo + shellcheck to confirm Rust compilation and shell lint pass under the new identifiers
3. Track v0.5.0 items: non-GRUB2 config generation expansion, loop-device CI integration, cargo-audit pinning review
---
*Review performed by an MoE panel of five senior reviewers. This report
documents the consensus findings and the remediation applied.*

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# QUICKSTART — DriveStage in 5 Minutes
**Author:** Jeremy Anderson <info@dcos.net> — [dcos.net](https://dcos.net)
This guide provisions a bootable DriveStage stick in under five minutes.
**Prerequisites:**
- A Linux machine (any modern distribution)
- A USB drive (8 GB or larger)
- Root access via `sudo`
---
## Step 1 — Install system dependencies
The engine requires standard Linux utilities. Install by distribution:
### Debian / Ubuntu
```bash
sudo apt update
sudo apt install -y \
parted dosfstools e2fsprogs \
grub-pc-bin grub-efi-amd64-bin \
util-linux rsync tar \
smartmontools
```
### Fedora
```bash
sudo dnf install -y \
parted dosfstools e2fsprogs \
grub2-pc grub2-efi-x64 grub2-tools grub2-common \
util-linux rsync tar \
smartmontools
```
### Arch Linux
```bash
sudo pacman -S --needed \
parted dosfstools e2fsprogs \
grub efibootmgr \
util-linux rsync tar \
smartmontools
```
---
## Step 2 — Obtain the engine
### From the tarball
```bash
tar xzf drivestage-0.4.0.tar.gz
cd drivestage
chmod +x scripts/blkstage.sh
```
### From git
```bash
git clone https://git.dcos.net/dcosnet/DriveStage.git
cd drivestage
chmod +x scripts/blkstage.sh
```
---
## Step 3 — Identify the USB drive
Plug in the USB drive and identify the device node:
```bash
lsblk
```
Locate the device matching your USB drive's capacity. The device is
typically `/dev/sdb` or `/dev/sdc`. **Verify the device name carefully**
— the next step erases all data on the target.
For interactive selection, run the engine without a device argument and
it lists removable candidates:
```bash
sudo ./scripts/blkstage.sh setup
```
---
## Step 4 — Provision the drive
**This erases all data on the target drive.** Verify the device name.
```bash
sudo ./scripts/blkstage.sh setup /dev/sdX
```
Replace `/dev/sdX` with your device (for example, `/dev/sdb`).
The engine executes the following sequence:
1. Requests typed confirmation (you type the device basename, e.g. `sdb`)
2. Wipes existing filesystem signatures
3. Creates a GPT partition table with three partitions:
- **ESP** (FAT32, 512 MB) — UEFI GRUB binaries
- **BIOS Boot** (1 MB, unformatted) — GRUB i386-pc embedding
- **Payloads** (ext4, remainder) — ISOs and rootfs data
4. Formats each partition
5. Installs GRUB2 for both UEFI (`x86_64-efi`) and BIOS (`i386-pc`)
6. Writes the auto-scan `grub.cfg`
7. Creates the payload directory structure
At completion the drive is bootable and empty.
---
## Step 5 — Add payloads
The payload partition mounts at `/mnt/drivestage/payload/`. Two methods:
### Method A — `deploy` subcommand
```bash
# ISO — copy and done
sudo ./scripts/blkstage.sh deploy /dev/sdX ~/Downloads/ubuntu-24.04-desktop-amd64.iso
# Additional ISOs
sudo ./scripts/blkstage.sh deploy /dev/sdX ~/Downloads/archlinux-2026.08.01-x86_64.iso
# Rootfs tarball — copy and extract in one step
sudo ./scripts/blkstage.sh deploy /dev/sdX ~/Downloads/rootfs-arch-x86_64.tar.gz
```
### Method B — Direct copy
```bash
# Payload partition is mounted at /mnt/drivestage/payload/
cp ~/Downloads/*.iso /mnt/drivestage/payload/payloads/isos/
cp ~/Downloads/rootfs-*.tar.gz /mnt/drivestage/payload/payloads/rootfs_tarballs/
# Extract tarballs (ISOs require no extraction)
sudo ./scripts/blkstage.sh scan /dev/sdX
```
### Payload directory layout
```
/mnt/drivestage/payload/payloads/
├── isos/ ← .iso files (Ubuntu, Arch, Fedora, ...)
├── rootfs_tarballs/ ← .tar.gz files (extracted on first scan)
├── rootfs/ ← pre-extracted rootfs directories
├── images/ ← .img / .raw files (experimental)
└── overlay/ ← reserved for overlayfs persistence
```
---
## Step 6 — List registered payloads
```bash
sudo ./scripts/blkstage.sh list /dev/sdX
```
Sample output:
```
[*] Registered payloads on this drive:
ISOs:
ubuntu-24.04-desktop-amd64.iso 4.7 GB
archlinux-2026.08.01-x86_64.iso 1.1 GB
RootFS Tarballs:
rootfs-arch-x86_64.tar.gz 850 MB
Extracted RootFS:
rootfs-arch-x86_64 1.2 GB
```
---
## Step 7 — Boot
```bash
sudo umount /mnt/drivestage/payload/boot/efi 2>/dev/null
sudo umount /mnt/drivestage/payload 2>/dev/null
sudo eject /dev/sdX
```
Boot from the USB on any machine. GRUB presents the auto-discovered
payload menu:
```
====================================================
DriveStage — Auto-Scan Payload Menu
Partition UUID: a1b2c3d4-5678-90ef-1234-567890abcdef
====================================================
ubuntu-24.04-desktop-amd64.iso [casper]
archlinux-2026.08.01-x86_64.iso [arch]
rootfs-arch-x86_64 [arch-rootfs]
Drop to GRUB command line
Reboot system
Halt system
```
Select an entry to boot.
---
## Adding payloads after initial setup
No re-provisioning required:
```bash
sudo mount /dev/sdX3 /mnt/drivestage/payload
cp ~/Downloads/fedora-workstation.iso /mnt/drivestage/payload/payloads/isos/
sudo umount /mnt/drivestage/payload
```
**ISOs require no `scan` command.** GRUB discovers them at boot. The
`scan` command applies only to tarballs, which require host-side
extraction (GRUB has no untar capability at boot time).
---
## Optional — Build the GUI
```bash
cd gui/
# Install Rust via rustup if absent
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
source ~/.cargo/env
cargo build --release
./target/release/drivestage-gui
```
The GUI provides a setup wizard, payload manager, bootloader switcher,
menu editor, and diagnostics.
---
## Troubleshooting
### "Refusing: '/dev/sdX' contains mounted filesystem (likely your OS disk)"
The selected device hosts a mounted OS partition. Re-run `lsblk` and
select the actual USB drive.
### GRUB menu does not display a recently added ISO
Verify the file resides in `payloads/isos/`. The auto-scan reads
specific subdirectories. Run `sudo ./scripts/blkstage.sh list /dev/sdX`
to confirm.
### An ISO fails to boot
The auto-scan recognizes 30+ distro patterns. Unrecognized ISOs
chainload via GRUB's `loopback.cfg`. If chainload fails, add a manual
`menuentry` to `/boot/grub/custom.cfg` on the payload partition. Refer
to `BLOG.md` for the architecture.
### Drive does not boot on BIOS hardware
Confirm `setup` was run — it installs GRUB's `i386-pc` BIOS boot code.
To reinstall:
```bash
sudo ./scripts/blkstage.sh setup /dev/sdX
```
This re-partitions and formats. Back up payloads first.
### Drive does not boot on a Mac
Macs use 64-bit EFI. The `--removable` flag in `grub-install
--target=x86_64-efi` writes `/EFI/BOOT/BOOTX64.EFI`, which Macs boot.
Hold Option at startup and select "EFI Boot."
---
## Next steps
- [`BLOG.md`](BLOG.md) — design rationale and architecture deep-dive
- [`README.md`](README.md) — full feature list and repository layout
- `./scripts/blkstage.sh --help` — complete CLI reference
- [`gui/README.md`](gui/README.md) — GUI build and usage

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# DriveStage
> A Linux-native toolkit for building multi-payload USB drives. Clean ext4 + GRUB2 architecture, boot-time auto-discovery, and an optional Rust GUI. Inspired by Easy2Boot and RMPrepUSB; built from scratch for the modern Linux era.
**Author:** Jeremy Anderson <info@dcos.net> — [dcos.net](https://dcos.net)
## Project naming
DriveStage is the public project name. BlkStage is the internal backend
that ships as `scripts/blkstage.sh` and installs on PATH as the `drivestage`
CLI command. The GUI binary is `drivestage-gui`. The previous codename was
retired to remove a trademark conflict; the rename is deliberate and
complete across source, docs, paths, partition labels, and GRUB cfg
identifiers.
```
┌──────────────────────────────────────────────────────────────────────┐
│ blkstage.sh → the engine (BlkStage, single bash script) │
│ drivestage-gui → optional Rust + Iced companion app │
└──────────────────────────────────────────────────────────────────────┘
```
## What this is
A two-part toolkit for building multi-payload USB drives on Linux. Drop a
dozen distro ISOs onto a single stick and boot any of them on demand.
Designed as a clean-slate Linux-native implementation — inspired by the
drop-and-boot workflow of Easy2Boot and RMPrepUSB, with no shared code or
heritage. The previous Bash + NTFS + FAT32 + grub4dos pipeline is not
carried forward; every layer is replaced with a Linux-native equivalent.
### The architecture
The drive layout is minimal, standard-compliant, and deterministic:
```
[ Drive: /dev/sdX or /dev/nvmeXn1 ]
├─ Partition 1: ESP (FAT32, 512MB) → /boot/efi (UEFI GRUB binaries)
├─ Partition 2: BIOS Boot (unformatted, 1MB) (GRUB GPT embedding)
└─ Partition 3: Payloads (ext4, remainder) → /payloads (ISOs, rootfs tars, images)
```
**Ext4 for payloads by decision.** GRUB2 ships built-in ext2/ext3/ext4
drivers. UEFI loads GRUB from the FAT32 ESP; GRUB loads its drivers and
reads menu entries and kernels directly from the ext4 partition. This
removes the FAT32 4 GB file size limit, eliminates the need for NTFS
drivers, and avoids contiguous-file defragmentation passes entirely.
Files on ext4 are files — no allocation tricks, no partition-table
patching.
### Boot-time auto-discovery
The defining feature. Drop files into `payloads/` and boot — no
host-side menu generation, no `scan` command for ISOs, no config file
editing. GRUB's `grub.cfg` contains `for` loops that scan
`payloads/{isos,rootfs,images}/` at boot time and emit menu entries
with distro-specific kernel arguments selected by filename pattern
matching.
Supported distros (30+): Ubuntu, Debian, Arch, Manjaro, Fedora, CentOS
Stream, Rocky, Alma, openSUSE, Kali, Parrot, Tails, Knoppix,
SystemRescue, Alpine, Void, Gentoo, Slax, TinyCore, Clonezilla, GParted,
Mint, elementary, Pop!_OS. Unrecognized ISOs chainload via GRUB's
standard `loopback.cfg` mechanism — no special-case handling required.
## Repository layout
```
drivestage/
├── README.md ← this document
├── QUICKSTART.md ← 5-minute getting started guide
├── BLOG.md ← design rationale and architecture deep-dive
├── LICENSE ← MIT
├── CONTRIBUTING.md ← development setup, conventions
├── SECURITY.md ← threat model, disclosure process
├── CHANGELOG.md ← release history
├── QA_REPORT.md ← MoE production-readiness review
├── Makefile ← build / test / install / dist targets
│
├── scripts/
│ ├── blkstage.sh ← the engine (BlkStage, single bash file)
│ ├── test_distro_detection.sh ← 30 distro-pattern unit tests
│ └── test_loop_device.sh ← end-to-end loop-device smoke test
│
└── gui/ ← optional Rust + Iced companion app
├── README.md ← GUI-specific documentation
├── Cargo.toml
├── Cargo.lock
├── assets/
│ └── blkstage.sh ← bundled copy of the engine
└── src/
├── main.rs ← bootstrap
├── app.rs ← top-level state, Message enum
├── theme.rs ← dark tech utility palette
├── core/ ← disk, sudo, bootloader, payload modules
└── ui/ ← 5 page modules + widget helpers
```
## Two interfaces, one engine
### CLI — the bash engine (BlkStage)
The minimal path. No Rust toolchain required. The engine is a single
self-contained file.
```bash
# Provision a USB drive (one-time)
sudo ./scripts/blkstage.sh setup /dev/sdX
# Drop ISOs into the mounted payloads directory — no scan command required
cp ubuntu-24.04.iso /mnt/drivestage/payload/payloads/isos/
cp archlinux-2026.08.01-x86_64.iso /mnt/drivestage/payload/payloads/isos/
# Eject and boot — GRUB auto-discovers
sudo umount /mnt/drivestage/payload
sudo eject /dev/sdX
```
Six subcommands: `setup`, `deploy`, `scan`, `list`, `shell`, `clean`.
Run `./scripts/blkstage.sh --help` for the full reference.
### GUI — the Rust companion (drivestage-gui)
A native desktop application for users who want a visual interface.
Wraps the bash engine with a dark-tech-utility themed UI featuring a
setup wizard, payload manager, bootloader switcher, menu editor, and
diagnostics.
```bash
cd gui
cargo build --release
./target/release/drivestage-gui
```
See [`gui/README.md`](gui/README.md) for build and usage instructions.
## Design principles
1. **Linux-native.** Ext4, GRUB2, bash, systemd-aware. No cross-platform shims.
2. **Drop-and-boot.** GRUB discovers payloads at boot time. No host-side menu generation for ISOs.
3. **Safe by default.** The engine refuses to touch the OS disk and requires typed confirmation for destructive operations.
4. **Single-file engine.** The bash script is one self-contained file. Dependencies are standard Linux utilities.
5. **Optional GUI.** The Rust app is a thin wrapper. The engine operates standalone.
6. **Multiple bootloader support.** GRUB2 by default; systemd-boot, Limine, and rEFInd available via the GUI.
## Requirements
### Bash engine
Standard Linux utilities present on any modern distribution:
```
bash 4+, parted, sfdisk, mkfs.fat, mkfs.ext4, blkid, findmnt,
grub-install (with x86_64-efi and i386-pc modules), tar, rsync, wipefs
```
Optional: `smartctl` for diagnostics; `bootctl`, `limine`, `refind-install` for non-GRUB2 bootloaders.
### GUI
- Rust 1.75+ ([rustup](https://rustup.rs))
- All bash engine dependencies
- Linux desktop (Wayland or X11)
## Installation
### From source
```bash
git clone https://git.dcos.net/dcosnet/DriveStage.git
cd drivestage
# CLI — install the engine on PATH as the `drivestage` command
sudo cp scripts/blkstage.sh /usr/local/bin/drivestage
sudo chmod +x /usr/local/bin/drivestage
# GUI — build with cargo
cd gui
cargo build --release
sudo cp target/release/drivestage-gui /usr/local/bin/
sudo mkdir -p /usr/local/lib/drivestage
sudo cp assets/blkstage.sh /usr/local/lib/drivestage/
```
### Via cargo install (GUI)
```bash
cargo install --git https://git.dcos.net/dcosnet/DriveStage
```
## Documentation
- [`QUICKSTART.md`](QUICKSTART.md) — 5-minute getting started guide
- [`BLOG.md`](BLOG.md) — design rationale and architecture deep-dive
- `./scripts/blkstage.sh --help` — full CLI reference
- [`gui/README.md`](gui/README.md) — GUI build, install, and usage
- [`CONTRIBUTING.md`](CONTRIBUTING.md) — development setup and conventions
- [`SECURITY.md`](SECURITY.md) — threat model and disclosure process
- [`CHANGELOG.md`](CHANGELOG.md) — release history
- [`QA_REPORT.md`](QA_REPORT.md) — MoE production-readiness review
## License
MIT — see [`LICENSE`](LICENSE).
## Attribution
Inspired by Easy2Boot and RMPrepUSB by Steve Si. Independent implementation; no derived code.
## Contributing
Pull requests welcome. The codebase prioritizes readability:
- The bash engine is a single file — direct to read, direct to modify.
- The Rust GUI separates core logic from UI pages.
- Distro boot parameters live in one location: the `ds_iso_entry` function
in the auto-scan `grub.cfg`, mirrored by the `detect_distro_profile`
function in the bash engine.
Adding support for a new distro requires a single `case` clause in
`detect_distro_profile` (in `scripts/blkstage.sh`) and a matching
`regexp` clause in the GRUB `grub.cfg` template generated by
`generate_grub_main_cfg`. The test suite at
`scripts/test_distro_detection.sh` verifies 30+ patterns.

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# Security Policy
## Supported versions
drivestage is pre-1.0 software. Only the most recent minor release line
receives security fixes.
| Version | Supported | Notes |
|---------|--------------------|--------------------------------------|
| 0.2.x | :white_check_mark: | Current release line |
| 0.1.x | :x: | EOL — upgrade to 0.2.x |
| < 0.1 | :x: | Never released |
When 0.4.0 ships, 0.2.x will move to a 30-day security-only window before EOL.
---
## Reporting a vulnerability
**Do not open a public GitHub issue for security vulnerabilities.**
Email vulnerability reports to **[security@dcos.net](mailto:security@dcos.net)**.
Please include:
1. A description of the issue and its impact.
2. The exact `blkstage.sh` subcommand(s) or GUI flow involved.
3. Reproduction steps (commands, ISO filenames, device path).
4. The output of `blkstage.sh --version`.
5. Your distro, kernel, and (if relevant) Rust toolchain version.
6. Any suggested remediation.
You will receive an acknowledgement within **5 business days**. If you do not,
follow up — the maintainer may be offline.
### Coordinated disclosure
We follow a **90-day coordinated disclosure** timeline:
| Day | Action |
|------|-------------------------------------------------------------------|
| 0 | Reporter emails `security@dcos.net` |
| ≤ 5 | Maintainer acknowledges receipt |
| ≤ 14 | Maintainer triages and assigns a severity (see below) |
| ≤ 30 | Maintainer proposes a fix or mitigation; reporter reviews |
| ≤ 60 | Fix lands on a maintenance branch and a patch release is cut |
| ≤ 90 | Public advisory published (CVE requested if eligible) |
If a fix is delayed, the reporter is kept informed at each milestone. Reporters
who wish to extend the 90-day window are encouraged to ask — extensions are
granted in good faith.
### Severity
We use [CVSS v3.1](https://www.first.org/cvss/calculator/3.1). Examples
relevant to this project:
| Severity | Example |
|-----------|----------------------------------------------------------------------------------|
| Critical | Script wipes the OS disk on a non-USB device under any input |
| High | Sudo password leaks to disk, logs, or another process |
| Medium | A distro-detection false negative causes the wrong kernel args on a known ISO |
| Low | Cosmetic information leak (e.g. device serial printed to stdout) |
---
## Threat model
drivestage is a **disk-destroying, privilege-elevating** tool. Treat it
with the same caution as `dd`, `mkfs`, or `parted`. The realistic threats are:
1. **Wrong-device wipe.** The user runs `setup` against a path that turns out
to be the OS disk, an LVM member, or a LUKS-backed device. Data loss is
total and unrecoverable.
2. **Credential exposure.** The GUI captures the user's sudo password to run
the engine. A leak (logs, core dump, swap, /proc/<pid>/environ) discloses
it to other local users or to anyone with later physical access.
3. **Tampered config file.** `blkstage.sh` sources an optional
`CONF_FILE` (`/etc/drivestage.conf`). A world-writable or non-root-owned
conf file is a local privilege escalation vector — any user could plant
shell that runs as root on the next invocation.
4. **Concurrent invocation.** Two `setup` or `deploy` runs racing on the same
device produce a corrupted partition table or half-written GRUB image.
5. **Hostile ISO payloads.** The tool copies ISO files verbatim. It does not
inspect ISO contents. Booting a malicious ISO is the user's responsibility
— but the tool must not silently boot a different ISO than the one the user
selected.
6. **CI/supply-chain.** A compromised dependency in `Cargo.lock` could ship
malicious code into the GUI binary.
The tool is **not** designed to defend against an attacker with write access
to the drivestage installation itself (`/usr/local/bin/drivestage`,
`/usr/local/lib/drivestage/`, or the git checkout). At that point the
attacker already has the privileges the tool runs with.
---
## Security measures in place
The following mitigations are present in 0.2.x. Each is documented in
[`CHANGELOG.md`](./CHANGELOG.md) and tested where feasible.
### Disk safety
- **`guard_root_disk`** refuses to operate on the device hosting `/`. It walks
the `lsblk PKNAME` chain so it also catches the OS disk when root sits on
LVM, LUKS, or mdadm. A second check blocks any device whose `PKNAME` chain
mentions `crypt`, `lvm`, `md`, or `dm-`.
- **Typed confirmation.** `setup` requires the user to type the device name
verbatim before any destructive operation begins.
- **Recursive unmount.** `unmount_all` uses `umount -R` so nested mounts under
`/mnt/drivestage/*` are cleaned up before re-partitioning.
- **Free-space check.** `deploy_payload` verifies sufficient free space on the
payloads partition before invoking `rsync`.
- **Cleanup trap.** A trap on `EXIT`/`INT`/`TERM` calls `unmount_all` so a
Ctrl-C mid-deploy doesn't leave partitions mounted and confusingly writable.
### Credential handling
- **`Zeroizing<String>`** wraps the sudo password in the GUI (`core/sudo.rs`).
The string is zeroized on drop — never written to logs, never serialized,
never sent across an IPC channel that persists.
- **`flock`-based single-instance lock.** Concurrent invocations are refused
with an explicit error rather than racing on shared state.
- **No password on the command line.** The script never accepts a password as
an argument or environment variable; the GUI passes it through `sudo -S`'s
stdin only.
### Configuration file safety
- **`CONF_FILE` ownership and mode validation.** Before sourcing
`/etc/drivestage.conf`, the script verifies:
- Owner is `root:root`.
- Mode is `0644` or stricter (no group/other write).
- File is a regular file (not a symlink, FIFO, or device node).
Failure aborts before sourcing.
### Build & supply chain
- **Pinned `Cargo.lock`.** The lockfile is committed; CI runs `--locked` for
test/build/clippy. A `cargo update` is a deliberate, reviewable change.
- **Dependabot** opens PRs for cargo + GitHub Actions dependency updates on a
weekly cadence (see [`.github/dependabot.yml`](./.github/dependabot.yml)).
- **CI gate.** Every push and PR runs `fmt`, `clippy -D warnings`, `test`,
`build --release`, `shellcheck`, `bash-tests`, and MSRV check on Rust 1.75
and stable (see [`.github/workflows/ci.yml`](./.github/workflows/ci.yml)).
---
## Hardening recommendations for users
- Install the script to a root-owned, mode-0755 location
(`/usr/local/bin/drivestage`).
- If you use `/etc/drivestage.conf`, `chown root:root` it and `chmod 0644`
it. The script will refuse to source it otherwise.
- Run the GUI as your normal user, not as root. The GUI escalates via `sudo`
only when needed; running it as root skips the privilege boundary.
- Verify the device path with `lsblk` before each `setup`. The script's
`guard_root_disk` catches the OS disk — it does **not** catch a second data
disk you care about.
- Don't leave a drivestage stick plugged into a multi-user host. The
payloads partition is world-readable ext4 by default.
---
## Contact
- **Security reports:** [security@dcos.net](mailto:security@dcos.net)
- **General issues:** [GitHub Issues](https://git.dcos.net/dcosnet/DriveStage/issues)
- **Maintainer:** Jeremy Anderson <info@dcos.net> — [dcos.net](https://dcos.net)

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[package]
name = "drivestage-gui"
version = "0.4.0"
edition = "2021"
rust-version = "1.75"
authors = ["Jeremy Anderson <info@dcos.net>"]
license = "MIT"
description = "Modern Linux GUI for building DriveStage drives — inspired by Easy2Boot/RMPrepUSB, built from scratch for the ext4/UEFI era"
readme = "README.md"
repository = "https://git.dcos.net/dcosnet/DriveStage"
keywords = ["usb", "boot", "grub", "uefi", "drivestage"]
categories = ["development-tools", "hardware-support"]
[[bin]]
name = "drivestage-gui"
path = "src/main.rs"
[dependencies]
# UI framework
iced = { version = "0.12", features = ["tokio", "debug", "image", "svg", "advanced"] }
iced_aw = { version = "0.9", default-features = false, features = ["tabs", "modal", "card", "badge", "spinner", "split"] }
# Async runtime
tokio = { version = "1", features = ["full"] }
tokio-stream = "0.1"
futures = "0.3"
async-stream = "0.3"
# Serialization (lsblk -J, config files)
serde = { version = "1", features = ["derive"] }
serde_json = "1"
# System / disk info
sysinfo = "0.30"
nix = { version = "0.27", features = ["fs", "user"] }
which = "6"
# File picker + drag-drop paths
rfd = "0.14"
# Misc utilities
bytesize = { version = "1.3", features = ["serde"] }
uuid = { version = "1", features = ["v4", "serde"] }
chrono = { version = "0.4", features = ["serde"] }
directories = "5"
log = "0.4"
env_logger = "0.11"
anyhow = "1"
thiserror = "1"
once_cell = "1"
regex = "1"
zeroize = { version = "1", features = ["alloc"] }

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# drivestage-gui
> A native Rust + Iced desktop application for building DriveStage drives on Linux. Inspired by Easy2Boot and RMPrepUSB. Built from scratch for the ext4/UEFI era.
**Author:** Jeremy Anderson <info@dcos.net> — [dcos.net](https://dcos.net)
A native Rust + [Iced](https://github.com/iced-rs/iced) desktop application that wraps the bundled [`blkstage.sh`](assets/blkstage.sh) bash script with a dark-tech-utility UI. Designed for sysadmins, distro-hoppers, and rescue-stick builders who want a Linux-native visual interface for DriveStage provisioning.
## Features
- **Drive setup wizard** — select a removable disk, configure ESP size and labels, install GRUB2, with live progress streaming
- **Payload manager** — drag-and-drop ISOs and tarballs, view sizes, delete, eject (GRUB auto-discovers at boot)
- **Bootloader switcher** — install GRUB2, systemd-boot, Limine, or rEFInd per-drive
- **Custom menuentry editor** — edit `/boot/grub/custom.cfg` with a monospace editor
- **Drive diagnostics** — SMART attributes, partition table dump, filesystem UUID and label browser
- **Dark tech utility theme** — btop/htop-inspired palette, monospace accents, dense information display
- **sudo authentication** — password cached in-memory for the session; never written to disk
## Architecture
Hybrid design. Rust core for disk discovery, UI state, and async orchestration. Bash delegation for GRUB install and tarball extraction via the bundled `blkstage.sh`.
```
src/
├── main.rs # Bootstrap, iced::Application entry
├── app.rs # Top-level state, Message enum, update/view
├── theme.rs # Dark tech utility color palette
├── core/
│ ├── mod.rs # Re-exports
│ ├── error.rs # AppError enum (thiserror)
│ ├── sudo.rs # sudo wrapper with stdout streaming
│ ├── disk.rs # lsblk -J parsing, drive detection, SMART
│ ├── bootloader.rs # GRUB2/systemd-boot/Limine/rEFInd dispatch
│ ├── payload.rs # Deploy/scan/list payloads
│ └── script.rs # Resolve bundled blkstage.sh path
├── ui/
│ ├── mod.rs # Re-exports + Effect type alias
│ ├── setup.rs # Drive setup wizard page
│ ├── payload.rs # Payload manager page
│ ├── bootloader.rs # Bootloader switcher page
│ ├── menu_editor.rs # Custom menuentry editor
│ ├── diagnostics.rs # Drive diagnostics page
│ └── widgets.rs # Custom button style sheet helpers
└── assets/
└── blkstage.sh # Bundled bash script (the engine)
```
## Build
Requires Rust 1.75+ and system dependencies for the bash script.
### System dependencies
#### Debian / Ubuntu
```bash
sudo apt install parted dosfstools e2fsprogs grub-pc-bin grub-efi-amd64-bin \
util-linux rsync tar smartmontools
```
#### Fedora
```bash
sudo dnf install parted dosfstools e2fsprogs grub2-pc grub2-efi-x64 grub2-tools grub2-common \
util-linux rsync tar smartmontools
```
#### Arch Linux
```bash
sudo pacman -S parted dosfstools e2fsprogs grub efibootmgr \
util-linux rsync tar smartmontools
```
### Build the GUI
```bash
cargo build --release
# Binary: target/release/drivestage-gui
```
## Install
### From source
```bash
cargo install --path .
```
Or from git:
```bash
cargo install --git https://git.dcos.net/dcosnet/DriveStage
```
The binary locates `blkstage.sh` by searching the following paths in order:
1. `$DRIVESTAGE_SH` environment variable
2. `./assets/blkstage.sh` (development mode)
3. `~/.local/share/drivestage/blkstage.sh` (cargo install layout)
4. `/usr/lib/drivestage/blkstage.sh` or `/usr/local/lib/drivestage/blkstage.sh`
For cargo install, copy the script to the data directory:
```bash
mkdir -p ~/.local/share/drivestage/
cp assets/blkstage.sh ~/.local/share/drivestage/
```
## Usage
```bash
# Launch the GUI (prompts for sudo password when required)
drivestage-gui
```
Workflow:
1. Click **Authenticate** to enter your sudo password (cached for the session)
2. Open the **Setup** tab, select a removable disk, configure options, type the device name to confirm
3. Click **PROVISION DRIVE** — the script partitions, formats, and installs GRUB2
4. Open the **Payloads** tab, click **Add files...** or drag-and-drop ISOs
5. Eject the USB and boot — GRUB auto-discovers payloads
## Bootloader support
| Bootloader | BIOS | UEFI | Installer binary |
|---|---|---|---|
| GRUB2 | Yes | Yes | `grub-install` |
| systemd-boot | No | Yes | `bootctl` |
| Limine | Yes | Yes | `limine` |
| rEFInd | No | Yes | `refind-install` |
GRUB2 is the default and matches the bash script's dual-target install. The remaining bootloaders install via their respective binaries.
## Theme — Dark Tech Utility
Inspired by btop, htop, and the Tokyo Night palette:
| Token | Hex | Use |
|---|---|---|
| `BG_DEEP` | `#121318` | App background |
| `BG_SURFACE` | `#1a1d24` | Cards, panels |
| `BG_ELEVATED` | `#222633` | Inputs, hover |
| `ACCENT` | `#4dbcd9` | Primary actions |
| `OK` | `#6bcc7d` | Success |
| `WARN` | `#f2bf4d` | Warnings |
| `DANGER` | `#ed616b` | Destructive actions |
| `FG_BRIGHT` | `#edeef0` | Primary text |
| `FG_MUTED` | `#9ea8bc` | Secondary text |
| `FG_DIM` | `#6b7588` | Tertiary text |
All UI text uses `Font::MONOSPACE` for the sysadmin-tool aesthetic.
## License
MIT — see [`../LICENSE`](../LICENSE).
## Attribution
Inspired by Easy2Boot and RMPrepUSB by Steve Si. Independent implementation; no derived code.

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//! Main application state, Message enum, update + view functions.
use iced::widget::{self, button, column, container, row, text};
use iced::{Alignment, Color, Command, Element, Font, Length, Padding, Theme};
use std::future::Future;
use std::pin::Pin;
use crate::core::{self, BlockDevice, SudoSession};
use crate::theme::Palette;
use crate::ui;
/// Type alias for an async effect returned by page update functions.
pub type Effect = Pin<Box<dyn Future<Output = core::Result<()>> + Send>>;
/// Top-level app state.
pub struct App {
pub sudo: SudoSession,
pub sudo_password: String,
pub tab: Tab,
pub devices: Vec<BlockDevice>,
pub selected_device: Option<usize>,
pub scanning: bool,
pub last_error: Option<String>,
pub log_lines: Vec<LogLine>,
pub setup: ui::SetupPage,
pub payload_mgr: ui::PayloadPage,
pub diagnostics: ui::DiagnosticsPage,
pub bootloader_page: ui::BootloaderPage,
pub menu_editor: ui::MenuEditorPage,
pub password_prompt_open: bool,
pub about_open: bool,
}
#[derive(Debug, Clone, PartialEq, Eq)]
pub enum Tab {
Setup,
Payloads,
Bootloader,
MenuEditor,
Diagnostics,
}
#[derive(Debug, Clone)]
pub enum Message {
TabChanged(Tab),
RefreshDevices,
DevicesLoaded(Vec<BlockDevice>),
SelectDevice(usize),
SudoPasswordChanged(String),
SudoPasswordSubmitted,
SudoPasswordCancelled,
OpenPasswordPrompt,
OpenAbout,
CloseAbout,
Log(String),
OperationStarted(String),
OperationFinished(Result<(), String>),
Error(String),
DismissError,
SetupMsg(ui::SetupMessage),
PayloadMsg(ui::PayloadMessage),
BootloaderMsg(ui::BootloaderMessage),
MenuEditorMsg(ui::MenuEditorMessage),
DiagnosticsMsg(ui::DiagnosticsMessage),
}
#[derive(Debug, Clone)]
pub struct LogLine {
pub text: String,
pub level: LogLevel,
pub ts: chrono::DateTime<chrono::Utc>,
}
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum LogLevel {
Info,
Success,
Warn,
Error,
}
impl iced::Application for App {
type Executor = iced::executor::Default;
type Message = Message;
type Theme = Theme;
type Flags = ();
fn new(_flags: Self::Flags) -> (Self, Command<Message>) {
let app = App {
sudo: SudoSession::new(),
sudo_password: String::new(),
tab: Tab::Setup,
devices: Vec::new(),
selected_device: None,
scanning: false,
last_error: None,
log_lines: Vec::new(),
setup: ui::SetupPage::default(),
payload_mgr: ui::PayloadPage::default(),
diagnostics: ui::DiagnosticsPage::default(),
bootloader_page: ui::BootloaderPage::default(),
menu_editor: ui::MenuEditorPage::default(),
password_prompt_open: false,
about_open: false,
};
(app, Command::perform(async {}, |_| Message::RefreshDevices))
}
fn title(&self) -> String {
"DriveStage — Linux GUI".into()
}
fn update(&mut self, msg: Message) -> Command<Message> {
match msg {
Message::TabChanged(t) => {
self.tab = t;
match self.tab {
Tab::Payloads => {
return Command::perform(async {}, |_| {
Message::PayloadMsg(ui::PayloadMessage::Refresh)
})
}
Tab::Diagnostics => {
if let Some(d) = self.selected_disk() {
let path = d.path.to_string_lossy().into_owned();
return Command::perform(async move { path }, |p| {
Message::DiagnosticsMsg(ui::DiagnosticsMessage::RefreshRequested(p))
});
}
}
Tab::Bootloader => {
if let Some(d) = self.selected_disk() {
let p = d.path.to_string_lossy().into_owned();
return Command::perform(async move { p }, |p| {
Message::BootloaderMsg(ui::BootloaderMessage::RefreshStatus(p))
});
}
}
Tab::MenuEditor => {
return Command::perform(async {}, |_| {
Message::MenuEditorMsg(ui::MenuEditorMessage::Load)
})
}
_ => {}
}
}
Message::RefreshDevices => {
self.scanning = true;
let sudo = self.sudo.clone();
return Command::perform(
async move { core::list_block_devices(&sudo).await },
|res| match res {
Ok(devs) => Message::DevicesLoaded(devs),
Err(e) => Message::Error(e.to_string()),
},
);
}
Message::DevicesLoaded(devs) => {
self.devices = filter_safe_devices(devs);
self.scanning = false;
self.push_log(
&format!("Found {} block device(s)", self.devices.len()),
LogLevel::Info,
);
if let Some(i) = self.selected_device {
if i >= self.devices.len() {
self.selected_device = None;
}
}
}
Message::SelectDevice(i) => {
self.selected_device = Some(i);
if let Some(d) = self.devices.get(i) {
self.push_log(
&format!("Selected: {} ({})", d.path.display(), d.size_human()),
LogLevel::Info,
);
}
}
Message::SudoPasswordChanged(pw) => {
self.sudo_password = pw;
}
Message::SudoPasswordSubmitted => {
let pw = self.sudo_password.clone();
self.password_prompt_open = false;
let sudo = self.sudo.clone();
return Command::perform(
async move {
sudo.set_password(pw).await;
},
|_| Message::RefreshDevices,
);
}
Message::SudoPasswordCancelled => {
self.password_prompt_open = false;
self.sudo_password.clear();
}
Message::OpenPasswordPrompt => {
self.password_prompt_open = true;
}
Message::OpenAbout => {
self.about_open = true;
}
Message::CloseAbout => {
self.about_open = false;
}
Message::Log(line) => {
let level = if line.contains("[ERROR]") || line.contains("error") {
LogLevel::Error
} else if line.contains("[WARN]") || line.contains("warning") {
LogLevel::Warn
} else if line.contains("done") || line.contains("[+]") {
LogLevel::Success
} else {
LogLevel::Info
};
self.push_log(&line, level);
}
Message::OperationStarted(name) => {
self.push_log(&format!("--- Starting: {} ---", name), LogLevel::Info);
}
Message::OperationFinished(res) => match res {
Ok(()) => self.push_log("--- Operation completed ---", LogLevel::Success),
Err(e) => {
self.push_log(&format!("Operation failed: {}", e), LogLevel::Error);
self.last_error = Some(e);
}
},
Message::Error(e) => {
self.push_log(&e, LogLevel::Error);
self.last_error = Some(e);
self.scanning = false;
}
Message::DismissError => {
self.last_error = None;
}
Message::SetupMsg(m) => {
let disk = self.selected_disk().cloned();
let (cmd, effect) = self.setup.update(m, disk.as_ref(), &self.sudo);
if let Some(effect) = effect {
return Command::perform(effect, Message::SetupMsg);
}
if let Some(cmd) = cmd {
return cmd.map(Message::SetupMsg);
}
}
Message::PayloadMsg(m) => {
let disk = self.selected_disk().cloned();
let (cmd, effect) = self.payload_mgr.update(m, disk.as_ref(), &self.sudo);
if let Some(effect) = effect {
return Command::perform(effect, Message::PayloadMsg);
}
if let Some(cmd) = cmd {
return cmd.map(Message::PayloadMsg);
}
}
Message::BootloaderMsg(m) => {
let disk = self.selected_disk().cloned();
let (cmd, effect) = self.bootloader_page.update(m, disk.as_ref(), &self.sudo);
if let Some(effect) = effect {
return Command::perform(effect, Message::BootloaderMsg);
}
if let Some(cmd) = cmd {
return cmd.map(Message::BootloaderMsg);
}
}
Message::MenuEditorMsg(m) => {
let disk = self.selected_disk().cloned();
let (cmd, effect) = self.menu_editor.update(m, disk.as_ref(), &self.sudo);
if let Some(effect) = effect {
return Command::perform(effect, Message::MenuEditorMsg);
}
if let Some(cmd) = cmd {
return cmd.map(Message::MenuEditorMsg);
}
}
Message::DiagnosticsMsg(m) => {
let disk = self.selected_disk().cloned();
let (cmd, effect) = self.diagnostics.update(m, disk.as_ref(), &self.sudo);
if let Some(effect) = effect {
return Command::perform(effect, Message::DiagnosticsMsg);
}
if let Some(cmd) = cmd {
return cmd.map(Message::DiagnosticsMsg);
}
}
}
Command::none()
}
fn view(&self) -> Element<'_, Message> {
let header = self.view_header();
let tabs = self.view_tabs();
let content = match self.tab {
Tab::Setup => {
let d = self.selected_disk().cloned();
self.setup.view(d.as_ref()).map(Message::SetupMsg)
}
Tab::Payloads => {
let d = self.selected_disk().cloned();
self.payload_mgr.view(d.as_ref()).map(Message::PayloadMsg)
}
Tab::Bootloader => {
let d = self.selected_disk().cloned();
self.bootloader_page
.view(d.as_ref())
.map(Message::BootloaderMsg)
}
Tab::MenuEditor => {
let d = self.selected_disk().cloned();
self.menu_editor
.view(d.as_ref())
.map(Message::MenuEditorMsg)
}
Tab::Diagnostics => {
let d = self.selected_disk().cloned();
self.diagnostics
.view(d.as_ref())
.map(Message::DiagnosticsMsg)
}
};
let log_panel = self.view_log_panel();
let main = column![
header,
tabs,
container(content)
.padding(Padding::new(20.0))
.width(Length::Fill)
.height(Length::Fill),
log_panel,
]
.spacing(0);
if self.about_open {
let about = self.view_about_modal();
iced_aw::modal(main, Some(about)).into()
} else {
main.into()
}
}
}
impl App {
fn push_log(&mut self, text: &str, level: LogLevel) {
self.log_lines.push(LogLine {
text: text.to_string(),
level,
ts: chrono::Utc::now(),
});
if self.log_lines.len() > 500 {
let drop_n = self.log_lines.len() - 500;
self.log_lines.drain(0..drop_n);
}
}
fn selected_disk(&self) -> Option<&BlockDevice> {
self.selected_device.and_then(|i| self.devices.get(i))
}
fn view_header(&self) -> Element<'_, Message> {
let title = text("DRIVESTAGE")
.size(20.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(Palette::ACCENT_BRIGHT));
let subtitle = text("Linux-native multi-payload USB builder")
.size(11.0)
.style(iced::theme::Text::Color(Palette::FG_MUTED));
let status_dot = if self.sudo.has_password_sync() {
"● ROOT"
} else {
"○ USER"
};
let status_color = if self.sudo.has_password_sync() {
Palette::OK
} else {
Palette::WARN
};
let status = text(status_dot)
.size(11.0)
.font(Font::MONOSPACE)
.style(status_color);
let refresh_btn = button(text("Refresh").size(13.0))
.on_press(Message::RefreshDevices)
.padding(iced::Padding {
top: 10.0,
bottom: 10.0,
left: 12.0,
right: 12.0,
})
.style(super::ui::widgets::secondary());
let elevate_btn = if self.sudo.has_password_sync() {
button(text("Clear sudo").size(13.0))
.on_press(Message::OpenPasswordPrompt)
.padding(iced::Padding {
top: 10.0,
bottom: 10.0,
left: 12.0,
right: 12.0,
})
.style(super::ui::widgets::secondary())
} else {
button(text("Authenticate").size(13.0))
.on_press(Message::OpenPasswordPrompt)
.padding(iced::Padding {
top: 10.0,
bottom: 10.0,
left: 12.0,
right: 12.0,
})
.style(super::ui::widgets::primary())
};
let about_btn = button(text("About").size(13.0))
.on_press(Message::OpenAbout)
.padding(iced::Padding {
top: 10.0,
bottom: 10.0,
left: 12.0,
right: 12.0,
})
.style(super::ui::widgets::secondary());
container(
row![
column![title, subtitle].spacing(2.0),
widget::horizontal_space(),
status,
refresh_btn,
elevate_btn,
about_btn,
]
.align_items(Alignment::Center)
.spacing(12.0)
.padding(iced::Padding {
top: 12.0,
bottom: 12.0,
left: 14.0,
right: 14.0,
}),
)
.style(|_t: &iced::Theme| container::Appearance {
background: Some(iced::Background::Color(Palette::BG_SURFACE)),
border: iced::Border {
color: Palette::BORDER_DIM,
width: 0.0,
radius: 0.0.into(),
},
..Default::default()
})
.width(Length::Fill)
.into()
}
fn view_tabs(&self) -> Element<'_, Message> {
let make = |label: &'static str, tab: Tab| -> Element<Message> {
let active = self.tab == tab;
let txt = text(label).size(13.0).font(Font::MONOSPACE);
let variant = if active {
super::ui::widgets::primary()
} else {
super::ui::widgets::secondary()
};
button(txt)
.on_press(Message::TabChanged(tab))
.padding(iced::Padding {
top: 12.0,
bottom: 12.0,
left: 14.0,
right: 14.0,
})
.style(variant)
.into()
};
container(
row![
make("Setup", Tab::Setup),
make("Payloads", Tab::Payloads),
make("Bootloader", Tab::Bootloader),
make("Menu Editor", Tab::MenuEditor),
make("Diagnostics", Tab::Diagnostics),
]
.spacing(8.0),
)
.style(|_t: &iced::Theme| container::Appearance {
background: Some(iced::Background::Color(Palette::BG_DEEP)),
border: iced::Border {
color: Palette::BORDER_DIM,
width: 0.0,
radius: 0.0.into(),
},
..Default::default()
})
.padding(Padding::new(8.0))
.width(Length::Fill)
.into()
}
fn view_log_panel(&self) -> Element<'_, Message> {
let lines: Vec<Element<Message>> = self
.log_lines
.iter()
.rev()
.take(8)
.map(|l| {
let color = match l.level {
LogLevel::Info => Palette::FG_MUTED,
LogLevel::Success => Palette::OK,
LogLevel::Warn => Palette::WARN,
LogLevel::Error => Palette::DANGER,
};
let ts = l.ts.format("%H:%M:%S").to_string();
row![
text(ts)
.size(10.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(Palette::FG_DIM)),
text(l.text.clone())
.size(11.0)
.font(Font::MONOSPACE)
.style(color),
]
.spacing(8.0)
.into()
})
.collect();
container(column(lines).spacing(2.0).padding(Padding::new(8.0)))
.style(|_t: &iced::Theme| container::Appearance {
background: Some(iced::Background::Color(Palette::BG_SURFACE)),
border: iced::Border {
color: Palette::BORDER_DIM,
width: 0.0,
radius: 0.0.into(),
},
..Default::default()
})
.width(Length::Fill)
.height(Length::Fixed(140.0))
.into()
}
fn view_about_modal(&self) -> Element<'_, Message> {
// Title row: app name + version, close button on right
let title = text("drivestage")
.size(22.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(Palette::ACCENT_BRIGHT));
let version = text("0.4.0")
.size(13.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(Palette::FG_MUTED));
let close_btn = button(text("×").size(18.0))
.on_press(Message::CloseAbout)
.padding(iced::Padding {
top: 4.0,
bottom: 4.0,
left: 10.0,
right: 10.0,
})
.style(super::ui::widgets::secondary());
// Description
let desc = text("A modern, Linux-native multi-payload USB builder.")
.size(13.0)
.style(iced::theme::Text::Color(Palette::FG_BRIGHT));
let desc2 =
text("Inspired by Easy2Boot and RMPrepUSB. Built from scratch for the ext4/UEFI era.")
.size(12.0)
.style(iced::theme::Text::Color(Palette::FG_MUTED));
// Label-value pairs
let row_kv = |k: &str, v: &str, v_color: iced::Color| -> Element<Message> {
row![
text(k)
.size(12.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(Palette::FG_DIM))
.width(Length::Fixed(90.0)),
text(v)
.size(12.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(v_color)),
]
.spacing(8.0)
.into()
};
let author_row = row_kv(
"Author",
"Jeremy Anderson <info@dcos.net>",
Palette::FG_BRIGHT,
);
let website_row = row_kv("Website", "https://dcos.net", Palette::ACCENT_BRIGHT);
let license_row = row_kv("License", "MIT", Palette::FG_BRIGHT);
let repo_row = row_kv(
"Repository",
"git.dcos.net/dcosnet/DriveStage",
Palette::ACCENT_BRIGHT,
);
// Divider
let divider =
widget::horizontal_rule(1).style(|_t: &iced::Theme| iced::widget::rule::Appearance {
color: Palette::BORDER_DIM,
width: 1,
radius: 0.0.into(),
fill_mode: iced::widget::rule::FillMode::Full,
});
// Footer
let built_with = text("Built with Rust, Iced, tokio, and bash.")
.size(11.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(Palette::FG_DIM));
let copyright = text("Copyright © 2026 Jeremy Anderson <info@dcos.net>.")
.size(11.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(Palette::FG_DIM));
container(
column![
row![
column![title, version].spacing(2.0),
widget::horizontal_space(),
close_btn,
]
.align_items(Alignment::Center),
column![desc, desc2].spacing(4.0),
column![author_row, website_row, license_row, repo_row].spacing(6.0),
divider,
column![built_with, copyright].spacing(2.0),
]
.spacing(16.0)
.padding(iced::Padding {
top: 24.0,
bottom: 24.0,
left: 28.0,
right: 28.0,
})
.width(Length::Fixed(440.0)),
)
.style(|_t: &iced::Theme| container::Appearance {
background: Some(iced::Background::Color(Palette::BG_ELEVATED)),
border: iced::Border {
color: Palette::ACCENT,
width: 1.0,
radius: 8.0.into(),
},
shadow: iced::Shadow {
color: Color::from_rgba(0.0, 0.0, 0.0, 0.5),
offset: iced::Vector::new(0.0, 8.0),
blur_radius: 24.0,
},
..Default::default()
})
.into()
}
}
/// Filter to only show removable devices that are safe to wipe (excluding OS disks).
fn filter_safe_devices(devs: Vec<BlockDevice>) -> Vec<BlockDevice> {
devs.into_iter()
.filter(|d| d.is_whole_disk() && d.is_removable() && core::is_disk_safe_to_wipe(d))
.collect()
}

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//! Bootloader installation dispatcher.
//!
//! Supports four bootloaders per the v1 spec:
//! - GRUB2 (BIOS + UEFI dual-target, matches the bash script)
//! - systemd-boot (UEFI only, simpler config, UKI-friendly)
//! - Limine (modern, BIOS+UEFI, custom binary protocol)
//! - rEFInd (UEFI only, GUI-ish, great for Macs and multi-OS)
//!
//! For each, we either shell out to the appropriate installer binary
//! (grub-install, bootctl, limine deploy, refind-install) or fall back to
//! a helper snippet in the bundled bash script.
use serde::{Deserialize, Serialize};
use crate::core::error::{AppError, Result};
use crate::core::sudo::SudoSession;
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize, Default)]
pub enum Bootloader {
#[default]
Grub2,
SystemdBoot,
Limine,
Refind,
}
impl Bootloader {
pub fn all() -> &'static [Bootloader] {
&[
Bootloader::Grub2,
Bootloader::SystemdBoot,
Bootloader::Limine,
Bootloader::Refind,
]
}
pub fn label(self) -> &'static str {
match self {
Bootloader::Grub2 => "GRUB2 (BIOS + UEFI)",
Bootloader::SystemdBoot => "systemd-boot (UEFI only)",
Bootloader::Limine => "Limine (BIOS + UEFI)",
Bootloader::Refind => "rEFInd (UEFI only)",
}
}
pub fn short_name(self) -> &'static str {
match self {
Bootloader::Grub2 => "grub2",
Bootloader::SystemdBoot => "systemd-boot",
Bootloader::Limine => "limine",
Bootloader::Refind => "rEFInd",
}
}
}
impl std::fmt::Display for Bootloader {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
f.write_str(self.label())
}
}
impl Bootloader {
pub fn supports_bios(self) -> bool {
matches!(self, Bootloader::Grub2 | Bootloader::Limine)
}
pub fn supports_uefi(self) -> bool {
matches!(
self,
Bootloader::Grub2 | Bootloader::SystemdBoot | Bootloader::Limine | Bootloader::Refind
)
}
pub fn description(self) -> &'static str {
match self {
Bootloader::Grub2 => "Mature, universal. Required for BIOS systems. Comprehensive feature set.",
Bootloader::SystemdBoot => "Modern, minimal UEFI-only bootloader. Reads .efi entries from ESP. Pairs well with UKIs.",
Bootloader::Limine => "Modern BIOS+UEFI bootloader with a clean config syntax and fast boot. Newer project.",
Bootloader::Refind => "Graphical UEFI boot manager. Auto-scans .efi files. Great for multi-OS setups.",
}
}
/// Required external binaries for this bootloader.
pub fn required_binaries(self) -> &'static [&'static str] {
match self {
Bootloader::Grub2 => &["grub-install", "grub-mkimage"],
Bootloader::SystemdBoot => &["bootctl"],
Bootloader::Limine => &["limine"],
Bootloader::Refind => &["refind-install"],
}
}
}
/// Configuration for a bootloader install operation.
#[derive(Debug, Clone)]
pub struct InstallRequest {
pub bootloader: Bootloader,
pub target_disk: String, // /dev/sdX
pub esp_mount: String, // /mnt/.../boot/efi
pub boot_mount: String, // /mnt/.../boot
pub payload_mount: String, // /mnt/...
pub install_bios: bool,
pub install_uefi: bool,
}
/// Result of an install operation.
#[derive(Debug, Clone)]
pub struct InstallResult {
pub bootloader: Bootloader,
pub exit_code: i32,
pub log: String,
}
/// Check whether all required binaries for `bl` are on PATH.
pub fn check_available(bl: Bootloader) -> bool {
bl.required_binaries()
.iter()
.all(|b| which::which(b).is_ok())
}
/// Dispatch to the appropriate installer.
///
/// Step-down order (Unix philosophy — one job per branch, early return):
/// 1. GRUB2 — dual-target install via two grub-install calls.
/// 2. systemd-boot — UEFI-only, bootctl install.
/// 3. Limine — BIOS+UEFI, limine deploy.
/// 4. rEFInd — UEFI-only, refind-install.
/// 5. After a successful non-GRUB2 install, generate the bootloader-
/// specific config files (GRUB2 uses the bash engine's boot-time
/// auto-scan and needs no host-side config generation).
pub async fn install(
sudo: &SudoSession,
req: &InstallRequest,
on_line: impl Fn(String) + Send + Sync + 'static,
) -> Result<InstallResult> {
let log_buf: std::sync::Arc<tokio::sync::Mutex<String>> =
std::sync::Arc::new(tokio::sync::Mutex::new(String::new()));
let log_for_cb = log_buf.clone();
let on_line_arc = std::sync::Arc::new(on_line);
let on_line_wrapper = move |line: String| {
if let Ok(mut g) = log_for_cb.try_lock() {
g.push_str(&line);
g.push('\n');
}
on_line_arc(line);
};
// Step 1: GRUB2 dispatches to its dedicated dual-target helper.
if req.bootloader == Bootloader::Grub2 {
return install_grub2(sudo, req, &log_buf).await;
}
// Step 2-4: resolve the argv for the requested bootloader. Each arm
// validates its preconditions and returns the argv vector, or fails
// early with a typed error.
let argv: Vec<&str> = resolve_install_argv(req)?;
let code = sudo.run_streaming(&argv, on_line_wrapper).await?;
let log = log_buf.lock().await.clone();
// Step 5: generate non-GRUB2 config files. Failures here are non-fatal —
// the bootloader binary is installed; configs can be re-generated from
// the GUI after payloads are added.
if code == 0 {
if let Err(e) = generate_and_write_configs(sudo, req).await {
log::warn!("Config generation failed (non-fatal): {}", e);
}
}
Ok(InstallResult {
bootloader: req.bootloader,
exit_code: code,
log,
})
}
/// GRUB2 dual-target install: UEFI (x86_64-efi) and BIOS (i386-pc) via
/// two grub-install calls. Resolves `grub-install` vs `grub2-install`
/// naming (Debian vs Fedora) via `resolve_grub_binary`.
async fn install_grub2(
sudo: &SudoSession,
req: &InstallRequest,
log_buf: &std::sync::Arc<tokio::sync::Mutex<String>>,
) -> Result<InstallResult> {
let grub_bin = resolve_grub_binary();
let mut code = 0;
if req.install_uefi {
let argv: Vec<&str> = vec![
grub_bin.as_str(),
"--target=x86_64-efi",
"--efi-directory",
req.esp_mount.as_str(),
"--boot-directory",
req.boot_mount.as_str(),
"--removable",
"--recheck",
];
code = sudo.run_streaming(&argv, |_: String| {}).await?;
if code != 0 {
let log = log_buf.lock().await.clone();
return Ok(InstallResult {
bootloader: req.bootloader,
exit_code: code,
log,
});
}
}
if req.install_bios {
let argv: Vec<&str> = vec![
grub_bin.as_str(),
"--target=i386-pc",
"--boot-directory",
req.boot_mount.as_str(),
"--recheck",
req.target_disk.as_str(),
];
code = sudo.run_streaming(&argv, |_: String| {}).await?;
}
let log = log_buf.lock().await.clone();
Ok(InstallResult {
bootloader: req.bootloader,
exit_code: code,
log,
})
}
/// Resolve the argv for a non-GRUB2 bootloader install. Each branch
/// validates preconditions and returns the ready-to-run argv, or fails
/// early with a typed `AppError::UnsupportedBootloader`.
fn resolve_install_argv<'a>(req: &'a InstallRequest) -> Result<Vec<&'a str>> {
match req.bootloader {
Bootloader::SystemdBoot if !req.install_uefi => Err(AppError::UnsupportedBootloader(
"systemd-boot requires UEFI target".into(),
)),
Bootloader::SystemdBoot => Ok(vec![
"bootctl",
"install",
"--esp-path",
req.esp_mount.as_str(),
"--boot-path",
req.boot_mount.as_str(),
]),
Bootloader::Limine => {
// Step-down on (BIOS, UEFI) flags: both → no flag; one →
// limit to that target; neither → error.
let mut v: Vec<&'a str> = vec!["limine", "deploy", req.target_disk.as_str()];
match (req.install_bios, req.install_uefi) {
(true, true) => Ok(v),
(true, false) => {
v.push("--bios-only");
Ok(v)
}
(false, true) => {
v.push("--uefi-only");
Ok(v)
}
(false, false) => Err(AppError::UnsupportedBootloader(
"Limine requires at least one of BIOS/UEFI".into(),
)),
}
}
Bootloader::Refind if !req.install_uefi => Err(AppError::UnsupportedBootloader(
"rEFInd requires UEFI target".into(),
)),
Bootloader::Refind => Ok(vec![
"refind-install",
"--root",
req.payload_mount.as_str(),
"--alldrivers",
]),
// GRUB2 is dispatched earlier in install(); reaching here is a bug.
Bootloader::Grub2 => unreachable!("GRUB2 is handled by install_grub2"),
}
}
/// Generate bootloader config files and write them to the payload partition.
/// Discovers current payloads and produces loader.conf / limine.conf / refind.conf.
async fn generate_and_write_configs(sudo: &SudoSession, req: &InstallRequest) -> Result<()> {
use crate::core::config_gen::generate_configs;
use crate::core::payload::list_payloads;
// Read the payload partition UUID via blkid
let p3 = derive_payload_partition(&req.target_disk);
let uuid_argv = ["blkid", "-s", "UUID", "-o", "value", &p3];
let uuid_output = sudo.run_capture(&uuid_argv).await?;
let payload_uuid = uuid_output.trim().to_string();
// Discover payloads
let payloads = list_payloads(&req.payload_mount).await.unwrap_or_default();
// Generate config files
let configs = generate_configs(req.bootloader, &payloads, &payload_uuid);
// Write each config file under <payload_mount>/boot/
for cfg in &configs {
let full_path = format!("{}/boot/{}", req.payload_mount, cfg.path);
// Ensure parent directory exists
if let Some(parent) = std::path::Path::new(&full_path).parent() {
tokio::fs::create_dir_all(parent).await.ok();
}
// Write via sudo (the path is root-owned after setup)
let tmp_path = format!("/tmp/ds_cfg_{}.conf", std::process::id());
tokio::fs::write(&tmp_path, cfg.content.as_bytes()).await?;
let cp_argv = ["cp", &tmp_path, &full_path];
let _ = sudo.run_streaming(&cp_argv, |_: String| {}).await;
let _ = tokio::fs::remove_file(&tmp_path).await;
}
Ok(())
}
/// Derive the payload partition device path from a whole-disk path.
/// /dev/sda -> /dev/sda3, /dev/nvme0n1 -> /dev/nvme0n1p3
fn derive_payload_partition(disk: &str) -> String {
if disk.starts_with("/dev/nvme") || disk.starts_with("/dev/mmcblk") {
format!("{}p3", disk)
} else {
format!("{}3", disk)
}
}
/// Resolve the GRUB install binary name: `grub-install` on Debian/Ubuntu,
/// `grub2-install` on Fedora/RHEL.
fn resolve_grub_binary() -> String {
if which::which("grub-install").is_ok() {
"grub-install".into()
} else if which::which("grub2-install").is_ok() {
"grub2-install".into()
} else {
"grub-install".into() // let it fail with a clear error
}
}
/// Render the bootloader-specific config file (grub.cfg, systemd-boot entries,
/// limine.conf, refind.conf) — basic stub, content is generated by the bash
/// script's auto-scan.
pub fn config_file_name(bl: Bootloader) -> &'static str {
match bl {
Bootloader::Grub2 => "grub/grub.cfg",
Bootloader::SystemdBoot => "loader/loader.conf",
Bootloader::Limine => "limine/limine.conf",
Bootloader::Refind => "refind/refind.conf",
}
}
/// Which subdirectory under /boot/ holds this bootloader's config.
pub fn config_subdir(bl: Bootloader) -> &'static str {
match bl {
Bootloader::Grub2 => "grub",
Bootloader::SystemdBoot => "loader",
Bootloader::Limine => "limine",
Bootloader::Refind => "refind",
}
}

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//! Bootloader configuration generation.
//!
//! Generates config files for systemd-boot, Limine, and rEFInd based on
//! the payloads present on the drive. GRUB2 uses the bash script's
//! boot-time auto-scan `grub.cfg` and does not need host-side generation.
//!
//! Each generator produces a complete config file as a String. The caller
//! writes it to the appropriate path under the payload partition's /boot/.
use crate::core::bootloader::Bootloader;
use crate::core::payload::{Payload, PayloadKind};
/// Generated config file content + relative path under /boot/.
pub struct GeneratedConfig {
pub path: String,
pub content: String,
}
/// Generate the config file(s) for `bl` given the discovered `payloads`.
/// Returns a Vec because systemd-boot uses one file per entry plus loader.conf.
pub fn generate_configs(
bl: Bootloader,
payloads: &[Payload],
payload_uuid: &str,
) -> Vec<GeneratedConfig> {
match bl {
Bootloader::Grub2 => Vec::new(), // GRUB2 uses boot-time auto-scan
Bootloader::SystemdBoot => generate_systemd_boot(payloads, payload_uuid),
Bootloader::Limine => vec![generate_limine(payloads, payload_uuid)],
Bootloader::Refind => vec![generate_refind(payloads, payload_uuid)],
}
}
/// systemd-boot: generates loader/loader.conf + one entry file per ISO.
fn generate_systemd_boot(payloads: &[Payload], _uuid: &str) -> Vec<GeneratedConfig> {
let mut configs = Vec::new();
// loader.conf — the top-level config
let mut loader_conf = String::from("# Auto-generated by drivestage-gui\n");
loader_conf.push_str("timeout 30\n");
loader_conf.push_str("console-mode keep\n");
loader_conf.push_str("default @saved\n\n");
loader_conf.push_str("# Entries are auto-discovered from loader/entries/*.conf\n");
configs.push(GeneratedConfig {
path: "loader/loader.conf".into(),
content: loader_conf,
});
// One .conf entry per ISO (systemd-boot can loopback via linux/initrd)
for p in payloads.iter().filter(|p| p.kind == PayloadKind::Iso) {
let entry_name = p.name.trim_end_matches(".iso");
let safe_name = sanitize_entry_name(entry_name);
let distro = detect_distro(&p.name);
let mut entry = format!("# {name}\n", name = p.name);
entry.push_str(&format!("title {}\n", entry_name));
entry.push_str("linux /isolinux/vmlinuz\n");
entry.push_str("initrd /isolinux/initrd.img\n");
let _ = distro;
entry.push_str(&format!(
"options iso-scan/filename={} root=live:CDLABEL=DRIVESTAGE rd.live.image\n\n",
p.relative_path
));
configs.push(GeneratedConfig {
path: format!("loader/entries/{}.conf", safe_name),
content: entry,
});
}
configs
}
/// Limine: generates a single limine.conf with all entries.
fn generate_limine(payloads: &[Payload], uuid: &str) -> GeneratedConfig {
let mut conf = String::from("# limine.conf — Auto-generated by drivestage-gui\n");
conf.push_str("# Manual edits will be overwritten on re-scan.\n\n");
conf.push_str("timeout: 30\n\n");
for p in payloads.iter().filter(|p| p.kind == PayloadKind::Iso) {
let entry_name = p.name.trim_end_matches(".iso");
conf.push_str(&format!("/ {}\n", entry_name));
conf.push_str(" protocol: linux\n");
conf.push_str(" kernel_path: boot():()/isolinux/vmlinuz\n");
conf.push_str(" module_path: boot():()/isolinux/initrd.img\n");
conf.push_str(&format!(
" cmdline: iso-scan/filename={} root=live:CDLABEL=DRIVESTAGE rd.live.image\n",
p.relative_path
));
let _ = uuid;
conf.push('\n');
}
GeneratedConfig {
path: "limine/limine.conf".into(),
content: conf,
}
}
/// rEFInd: generates refind.conf with scanfor + manual stanzas.
fn generate_refind(payloads: &[Payload], _uuid: &str) -> GeneratedConfig {
let mut conf = String::from("# refind.conf — Auto-generated by drivestage-gui\n");
conf.push_str("# Manual edits will be overwritten on re-scan.\n\n");
conf.push_str("timeout 30\n");
conf.push_str("scanfor manual\n");
conf.push_str("showtools shutdown,reboot\n\n");
for p in payloads.iter().filter(|p| p.kind == PayloadKind::Iso) {
let entry_name = p.name.trim_end_matches(".iso");
conf.push_str(&format!("menuentry {}\n", entry_name));
conf.push_str(" loader /isolinux/vmlinuz\n");
conf.push_str(" initrd /isolinux/initrd.img\n");
conf.push_str(&format!(
" options \"iso-scan/filename={} root=live:CDLABEL=DRIVESTAGE rd.live.image\"\n\n",
p.relative_path
));
}
GeneratedConfig {
path: "refind/refind.conf".into(),
content: conf,
}
}
/// Sanitize an entry name for use as a filename (systemd-boot entry IDs).
fn sanitize_entry_name(name: &str) -> String {
name.chars()
.map(|c| {
if c.is_ascii_alphanumeric() || c == '-' || c == '_' {
c
} else {
'-'
}
})
.collect()
}
/// Detect the distro from a filename (mirrors the bash detect_distro_profile).
fn detect_distro(filename: &str) -> &'static str {
let lower = filename.to_lowercase();
let patterns: &[(&str, &str)] = &[
("ubuntu", "ubuntu"),
("archlinux", "arch"),
("arch-", "arch"),
("debian", "debian"),
("manjaro", "manjaro"),
("fedora", "fedora"),
("centos", "centos"),
("rocky", "rocky"),
("alma", "alma"),
("opensuse", "opensuse"),
("tumbleweed", "opensuse"),
("leap", "opensuse"),
("kali", "kali"),
("parrot", "parrot"),
("tails", "tails"),
("alpine", "alpine"),
("void", "void"),
("gentoo", "gentoo"),
];
for (pat, name) in patterns {
if lower.contains(pat) {
return name;
}
}
"unknown"
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_sanitize_entry_name() {
assert_eq!(sanitize_entry_name("Ubuntu 24.04"), "Ubuntu-24-04");
assert_eq!(sanitize_entry_name("arch-linux.iso"), "arch-linux-iso");
assert_eq!(sanitize_entry_name("clean_name"), "clean_name");
}
#[test]
fn test_detect_distro() {
assert_eq!(detect_distro("ubuntu-24.04.iso"), "ubuntu");
assert_eq!(detect_distro("archlinux-2026.iso"), "arch");
assert_eq!(detect_distro("Fedora-Workstation.iso"), "fedora");
assert_eq!(detect_distro("random.iso"), "unknown");
}
#[test]
fn test_generate_limine_has_timeout() {
let payloads: Vec<Payload> = vec![];
let cfg = generate_limine(&payloads, "test-uuid");
assert!(cfg.content.contains("timeout: 30"));
assert_eq!(cfg.path, "limine/limine.conf");
}
#[test]
fn test_generate_refind_has_scanfor() {
let payloads: Vec<Payload> = vec![];
let cfg = generate_refind(&payloads, "test-uuid");
assert!(cfg.content.contains("scanfor manual"));
assert_eq!(cfg.path, "refind/refind.conf");
}
#[test]
fn test_generate_systemd_boot_creates_loader_conf() {
let payloads: Vec<Payload> = vec![];
let configs = generate_systemd_boot(&payloads, "test-uuid");
assert!(!configs.is_empty());
assert_eq!(configs[0].path, "loader/loader.conf");
assert!(configs[0].content.contains("timeout 30"));
}
#[test]
fn test_grub2_generates_nothing() {
let payloads: Vec<Payload> = vec![];
let configs = generate_configs(Bootloader::Grub2, &payloads, "uuid");
assert!(configs.is_empty());
}
}

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//! Block device discovery and partition inspection.
//!
//! Wraps `lsblk -J` (JSON output) for reliable parsing. We use lsblk rather
//! than reading /sys directly because lsblk already handles nvme/mmc/loop
//! naming, partition nesting, mount points, and filesystem detection.
use serde::{Deserialize, Serialize};
use std::path::PathBuf;
use std::process::Command;
use crate::core::error::Result;
use crate::core::sudo::SudoSession;
/// Top-level lsblk JSON output.
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct LsblkOutput {
pub blockdevices: Vec<BlockDevice>,
}
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct BlockDevice {
pub name: String,
#[serde(default)]
pub kname: String,
#[serde(default)]
pub path: PathBuf,
#[serde(default)]
pub model: Option<String>,
#[serde(default)]
pub vendor: Option<String>,
#[serde(default)]
pub serial: Option<String>,
#[serde(default)]
pub size: Option<String>,
#[serde(default)]
pub size_bytes: Option<u64>,
#[serde(default)]
pub fstype: Option<String>,
#[serde(default)]
pub label: Option<String>,
#[serde(default)]
pub uuid: Option<String>,
#[serde(default)]
pub pttype: Option<String>, // gpt, dos, etc.
#[serde(default)]
pub ptuuid: Option<String>,
#[serde(default)]
pub rota: Option<bool>, // rotational? true = HDD
#[serde(default)]
pub rm: Option<bool>, // removable?
#[serde(default)]
pub hotplug: Option<bool>,
#[serde(default)]
pub tran: Option<String>, // usb, sata, nvme, mmc
#[serde(default)]
pub children: Vec<BlockDevice>, // partitions
#[serde(default)]
pub mountpoints: Vec<String>,
#[serde(default)]
pub log_sec: Option<u64>, // logical sector size
#[serde(default)]
pub phy_sec: Option<u64>, // physical sector size
#[serde(default)]
pub state: Option<String>,
#[serde(default)]
pub group: Option<String>,
}
impl BlockDevice {
/// Is this a whole disk (not a partition)?
pub fn is_whole_disk(&self) -> bool {
// Children present AND no fstype/uuid means it's a disk, not a partition.
// lsblk gives partitions a fstype or marks them as children.
// Simplest heuristic: if name has no digit suffix (sda vs sda1), it's a disk.
// But nvme0n1 vs nvme0n1p1 breaks this — use 'children' presence instead.
!self.children.is_empty() || (self.fstype.is_none() && self.uuid.is_none())
}
/// True if the device is removable (USB stick, SD card).
pub fn is_removable(&self) -> bool {
self.rm == Some(true)
|| self.tran.as_deref() == Some("usb")
|| self.tran.as_deref() == Some("mmc")
}
/// True if this is an NVMe or SSD (no moving parts).
pub fn is_ssd(&self) -> bool {
self.rota == Some(false)
}
/// Human-readable transport: "USB", "NVMe", "SATA SSD", "HDD", etc.
pub fn transport_label(&self) -> &'static str {
match self.tran.as_deref() {
Some("usb") => "USB",
Some("nvme") => "NVMe",
Some("mmc") => "SD/eMMC",
Some("sata") if self.is_ssd() => "SATA SSD",
Some("sata") => "SATA HDD",
Some("sas") => "SAS",
_ if self.is_ssd() => "SSD",
_ => "Disk",
}
}
/// True if any partition is mounted.
pub fn has_mounts(&self) -> bool {
!self.mountpoints.is_empty() || self.children.iter().any(|c| !c.mountpoints.is_empty())
}
/// Total size in bytes (from size_bytes if present, else parse size string).
pub fn size_bytes(&self) -> u64 {
if let Some(b) = self.size_bytes {
return b;
}
if let Some(s) = &self.size {
return parse_lsblk_size(s);
}
0
}
/// Human-readable size (e.g. "32 GB").
pub fn size_human(&self) -> String {
bytesize::ByteSize::b(self.size_bytes()).to_string_as(true)
}
/// Find the ESP partition (FAT32, type EFI System) if present.
pub fn esp_partition(&self) -> Option<&BlockDevice> {
self.children.iter().find(|c| {
// lsblk doesn't show partition type codes; we rely on fstype + label
c.fstype.as_deref() == Some("vfat")
&& (c.label.as_deref() == Some("DRIVESTAGE-EFI")
|| c.label.as_deref() == Some("EFI System")
|| c.label.as_deref() == Some("ESP")
|| c.name.ends_with('1'))
})
}
/// Find the payload (ext4) partition if present.
pub fn payload_partition(&self) -> Option<&BlockDevice> {
self.children.iter().find(|c| {
c.fstype.as_deref() == Some("ext4")
&& (c.label.as_deref() == Some("DRIVESTAGE")
|| c.label.as_deref() == Some("PAYLOADS"))
})
}
}
/// Parse lsblk size strings like "32G", "500M", "1T" into bytes.
fn parse_lsblk_size(s: &str) -> u64 {
let s = s.trim();
if s.is_empty() {
return 0;
}
let (num_part, unit) = s.split_at(
s.find(|c: char| !c.is_ascii_digit() && c != '.')
.unwrap_or(s.len()),
);
let num: f64 = num_part.parse().unwrap_or(0.0);
let mult: f64 = match unit.trim() {
"" => 1.0,
"B" => 1.0,
"K" | "KB" | "KiB" => 1024.0,
"M" | "MB" | "MiB" => 1024.0 * 1024.0,
"G" | "GB" | "GiB" => 1024.0 * 1024.0 * 1024.0,
"T" | "TB" | "TiB" => 1024.0_f64.powi(4),
"P" | "PB" | "PiB" => 1024.0_f64.powi(5),
_ => 1.0,
};
(num * mult) as u64
}
/// Run `lsblk -J -o +...` and parse the result.
/// This is read-only and doesn't strictly need sudo, but we route through
/// the sudo session so it works in environments where /sys/block is locked
/// down (some hardened distros).
pub async fn list_block_devices(sudo: &SudoSession) -> Result<Vec<BlockDevice>> {
let argv = &[
"lsblk", "-J", "-b",
"-o", "NAME,KNAME,PATH,MODEL,VENDOR,SERIAL,SIZE,FSTYPE,LABEL,UUID,PTTYPE,PTUUID,ROTA,RM,HOTPLUG,TRAN,CHILDREN,MOUNTPOINTS,LOG-SEC,PHY-SEC,STATE,GROUP",
];
let output = sudo.run_capture(argv).await?;
let parsed: LsblkOutput = serde_json::from_str(&output)?;
Ok(parsed.blockdevices)
}
/// Filter to candidate "writeable USB" disks: removable OR explicitly USB transport.
pub fn filter_removable(devices: &[BlockDevice]) -> Vec<BlockDevice> {
devices
.iter()
.filter(|d| d.is_whole_disk() && d.is_removable())
.cloned()
.collect()
}
/// Check whether a disk is "safe" to wipe — i.e., does NOT contain / or /boot.
///
/// Single-expression iterator chain replaces the nested for/if pattern:
/// children → mountpoints → critical-prefix check.
/// Returns false on the first critical mount encountered.
pub fn is_disk_safe_to_wipe(disk: &BlockDevice) -> bool {
const CRITICAL_MOUNTS: &[&str] = &["/", "/boot", "/boot/efi", "/usr", "/var", "/home", "/etc"];
!disk
.children
.iter()
.flat_map(|c| c.mountpoints.iter())
.any(|m| {
CRITICAL_MOUNTS
.iter()
.any(|cm| m == cm || m.starts_with(&format!("{}/", cm)))
})
}
/// Run `smartctl -a` on a device and return raw output for the diagnostics page.
pub async fn read_smart(sudo: &SudoSession, dev_path: &str) -> Result<String> {
sudo.run_capture(&["smartctl", "-a", dev_path]).await
}
/// Run `sfdisk -d` to dump the partition table for display.
pub async fn dump_partition_table(sudo: &SudoSession, dev_path: &str) -> Result<String> {
sudo.run_capture(&["sfdisk", "-d", dev_path]).await
}
/// Synchronous variant of list_block_devices — used in tests / non-async contexts.
pub fn list_block_devices_sync() -> Result<Vec<BlockDevice>> {
let output = Command::new("lsblk")
.args(["-J", "-b", "-o", "NAME,KNAME,PATH,MODEL,VENDOR,SERIAL,SIZE,FSTYPE,LABEL,UUID,PTTYPE,PTUUID,ROTA,RM,HOTPLUG,TRAN,CHILDREN,MOUNTPOINTS,LOG-SEC,PHY-SEC,STATE,GROUP"])
.output()?;
let parsed: LsblkOutput = serde_json::from_slice(&output.stdout)?;
Ok(parsed.blockdevices)
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_parse_size() {
assert_eq!(parse_lsblk_size("32G"), 32 * 1024_u64.pow(3));
assert_eq!(parse_lsblk_size("500M"), 500 * 1024_u64.pow(2));
assert_eq!(parse_lsblk_size("1T"), 1024_u64.pow(4));
assert_eq!(parse_lsblk_size(""), 0);
assert_eq!(parse_lsblk_size("1024"), 1024);
assert_eq!(parse_lsblk_size("1.5G"), 1610612736);
}
#[test]
fn test_parse_size_units() {
assert_eq!(parse_lsblk_size("1K"), 1024);
assert_eq!(parse_lsblk_size("1KB"), 1024);
assert_eq!(parse_lsblk_size("1KiB"), 1024);
assert_eq!(parse_lsblk_size("1P"), 1024_u64.pow(5));
}
#[test]
fn test_parse_lsblk_json() {
let json = r#"{
"blockdevices": [{
"name": "sdb",
"kname": "sdb",
"path": "/dev/sdb",
"model": "Flash Drive",
"size": "32G",
"size_bytes": 34359738368,
"rm": true,
"rota": false,
"tran": "usb",
"children": [],
"mountpoints": []
}]
}"#;
let parsed: LsblkOutput = serde_json::from_str(json).unwrap();
assert_eq!(parsed.blockdevices.len(), 1);
let d = &parsed.blockdevices[0];
assert!(d.is_removable());
assert!(d.is_ssd());
assert_eq!(d.transport_label(), "USB");
assert_eq!(d.size_bytes(), 34359738368);
}
#[test]
fn test_parse_lsblk_nvme_json() {
let json = r#"{
"blockdevices": [{
"name": "nvme0n1",
"kname": "nvme0n1",
"path": "/dev/nvme0n1",
"model": "Samsung SSD 970",
"size": "500G",
"size_bytes": 536870912000,
"rm": false,
"rota": false,
"tran": "nvme",
"children": [
{"name": "nvme0n1p1", "kname": "nvme0n1p1", "path": "/dev/nvme0n1p1",
"size": "512M", "size_bytes": 536870912, "fstype": "vfat",
"children": [], "mountpoints": ["/boot/efi"]}
],
"mountpoints": []
}]
}"#;
let parsed: LsblkOutput = serde_json::from_str(json).unwrap();
let d = &parsed.blockdevices[0];
assert!(!d.is_removable());
assert_eq!(d.transport_label(), "NVMe");
assert_eq!(d.children.len(), 1);
assert!(d.has_mounts());
}
#[test]
fn test_is_disk_safe_to_wipe_clean_disk() {
let dev = BlockDevice {
name: "sdb".into(),
kname: "sdb".into(),
path: "/dev/sdb".into(),
model: None,
vendor: None,
serial: None,
size: None,
size_bytes: None,
fstype: None,
label: None,
uuid: None,
pttype: None,
ptuuid: None,
rota: Some(false),
rm: Some(true),
hotplug: None,
tran: Some("usb".into()),
children: vec![],
mountpoints: vec![],
log_sec: None,
phy_sec: None,
state: None,
group: None,
};
assert!(is_disk_safe_to_wipe(&dev));
}
#[test]
fn test_is_disk_safe_to_wipe_root_mount() {
let dev = BlockDevice {
name: "sda".into(),
kname: "sda".into(),
path: "/dev/sda".into(),
model: None,
vendor: None,
serial: None,
size: None,
size_bytes: None,
fstype: None,
label: None,
uuid: None,
pttype: None,
ptuuid: None,
rota: Some(true),
rm: Some(false),
hotplug: None,
tran: Some("sata".into()),
children: vec![BlockDevice {
name: "sda2".into(),
kname: "sda2".into(),
path: "/dev/sda2".into(),
model: None,
vendor: None,
serial: None,
size: None,
size_bytes: None,
fstype: Some("ext4".into()),
label: None,
uuid: None,
pttype: None,
ptuuid: None,
rota: None,
rm: None,
hotplug: None,
tran: None,
children: vec![],
mountpoints: vec!["/".into()],
log_sec: None,
phy_sec: None,
state: None,
group: None,
}],
mountpoints: vec![],
log_sec: None,
phy_sec: None,
state: None,
group: None,
};
assert!(!is_disk_safe_to_wipe(&dev));
}
}

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//! Central error types for the app.
use thiserror::Error;
pub type Result<T> = std::result::Result<T, AppError>;
#[derive(Error, Debug)]
pub enum AppError {
#[error("IO error: {0}")]
Io(#[from] std::io::Error),
#[error("JSON parse error: {0}")]
Json(#[from] serde_json::Error),
#[error("sudo authentication required (no cached credentials)")]
SudoAuthRequired,
#[error("sudo authentication failed (wrong password)")]
SudoAuthFailed,
#[error("command failed ({code}): {cmd}\nOutput: {output}")]
CommandFailed {
cmd: String,
code: i32,
output: String,
},
#[error("device not found: {0}")]
DeviceNotFound(String),
#[error("not a block device: {0}")]
NotABlockDevice(String),
#[error("refused: target disk contains mounted OS partition ({0})")]
UnsafeDisk(String),
#[error("bash script not found at {0}. Reinstall the package or set DRIVESTAGE_SH.")]
ScriptMissing(String),
#[error("operation cancelled by user")]
Cancelled,
#[error("unsupported bootloader: {0}")]
UnsupportedBootloader(String),
#[error("partition operation failed: {0}")]
PartitionFailed(String),
#[error("payload error: {0}")]
Payload(String),
#[error("other: {0}")]
Other(String),
}

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//! Core logic — disk I/O, bootloader dispatch, payload management, sudo.
pub mod bootloader;
pub mod config_gen;
pub mod disk;
pub mod error;
pub mod payload;
pub mod script;
pub mod sudo;
pub use bootloader::Bootloader;
#[allow(unused_imports)]
pub use config_gen::{generate_configs, GeneratedConfig};
pub use disk::{is_disk_safe_to_wipe, list_block_devices, BlockDevice};
pub use error::{AppError, Result};
pub use payload::{deploy as deploy_payload, list_payloads, Payload, PayloadKind};
pub use sudo::SudoSession;

259
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//! Payload management — wraps the bash script's deploy/scan/list subcommands
//! and also parses the payloads/ directory for direct display.
use serde::{Deserialize, Serialize};
use std::path::PathBuf;
use tokio::fs;
use crate::core::error::{AppError, Result};
use crate::core::sudo::SudoSession;
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
pub enum PayloadKind {
Iso,
RootfsTarball,
RootfsDir,
Image,
Unknown,
}
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct Payload {
pub kind: PayloadKind,
pub name: String,
pub path: String, // absolute path on host (e.g. /mnt/.../payloads/isos/x.iso)
pub size_bytes: u64,
pub relative_path: String, // path relative to payload partition (e.g. /payloads/isos/x.iso)
}
impl Payload {
pub fn size_human(&self) -> String {
bytesize::ByteSize::b(self.size_bytes).to_string_as(true)
}
}
/// File-predicate signature used by the table-driven payload discovery.
/// Centralized as a type alias so the `file_specs` table stays readable.
pub type FilePredicate = fn(&str) -> bool;
/// List all payloads on a mounted payload partition.
///
/// Scans the four payload subdirectories in table-driven fashion. Each
/// (subdirectory, kind, predicate) tuple produces zero or more Payload
/// records, collected and sorted by kind-then-name at the end.
pub async fn list_payloads(payload_mount: &str) -> Result<Vec<Payload>> {
let base = PathBuf::from(payload_mount);
let mut out = Vec::new();
// Table-driven payload discovery: (subdir, kind, file-predicate).
// Adding a new payload category requires one row here.
let file_specs: &[(&str, PayloadKind, FilePredicate)] = &[
("payloads/isos", PayloadKind::Iso, |n| n.ends_with(".iso")),
(
"payloads/rootfs_tarballs",
PayloadKind::RootfsTarball,
is_tarball_ext,
),
("payloads/images", PayloadKind::Image, |n| {
n.ends_with(".img") || n.ends_with(".raw")
}),
];
for (subdir, kind, predicate) in file_specs {
let dir = base.join(subdir);
if !dir.exists() {
continue;
}
collect_file_payloads(&dir, *kind, *predicate, subdir, &mut out).await?;
}
// Directories (rootfs/) — separate path because dir_size is async.
let rootfs_dir = base.join("payloads/rootfs");
if rootfs_dir.exists() {
collect_dir_payloads(&rootfs_dir, &mut out).await?;
}
out.sort_by(|a, b| {
kind_rank(&a.kind)
.cmp(&kind_rank(&b.kind))
.then_with(|| a.name.cmp(&b.name))
});
Ok(out)
}
/// Walk a subdirectory and collect file payloads matching `predicate`.
async fn collect_file_payloads(
dir: &std::path::Path,
kind: PayloadKind,
predicate: fn(&str) -> bool,
subdir: &str,
out: &mut Vec<Payload>,
) -> Result<()> {
let mut entries = fs::read_dir(dir).await?;
while let Some(e) = entries.next_entry().await? {
let meta = match e.metadata().await {
Ok(m) if m.is_file() => m,
_ => continue,
};
let name = e.file_name().to_string_lossy().into_owned();
if !predicate(&name.to_lowercase()) {
continue;
}
out.push(Payload {
kind,
name: name.clone(),
path: e.path().to_string_lossy().into_owned(),
size_bytes: meta.len(),
relative_path: format!("/{}/{}", subdir, name),
});
}
Ok(())
}
/// Walk the rootfs/ subdirectory and collect directory payloads.
async fn collect_dir_payloads(dir: &std::path::Path, out: &mut Vec<Payload>) -> Result<()> {
let mut entries = fs::read_dir(dir).await?;
while let Some(e) = entries.next_entry().await? {
let meta = match e.metadata().await {
Ok(m) if m.is_dir() => m,
_ => continue,
};
let _ = meta; // metadata confirmed is_dir; size computed separately
let name = e.file_name().to_string_lossy().into_owned();
let size = dir_size(&e.path()).await;
out.push(Payload {
kind: PayloadKind::RootfsDir,
name: name.clone(),
path: e.path().to_string_lossy().into_owned(),
size_bytes: size,
relative_path: format!("/payloads/rootfs/{}", name),
});
}
Ok(())
}
/// Predicate: filename has a tarball extension.
fn is_tarball_ext(lower: &str) -> bool {
const TARBALL_EXTS: &[&str] = &[".tar", ".tar.gz", ".tgz", ".tar.xz", ".tar.zst", ".tar.bz2"];
TARBALL_EXTS.iter().any(|ext| lower.ends_with(ext))
}
fn kind_rank(k: &PayloadKind) -> u8 {
match k {
PayloadKind::Iso => 0,
PayloadKind::RootfsDir => 1,
PayloadKind::RootfsTarball => 2,
PayloadKind::Image => 3,
PayloadKind::Unknown => 4,
}
}
async fn dir_size(path: &std::path::Path) -> u64 {
let mut total = 0u64;
let mut stack = vec![path.to_path_buf()];
while let Some(dir) = stack.pop() {
if let Ok(mut entries) = fs::read_dir(&dir).await {
while let Ok(Some(e)) = entries.next_entry().await {
let meta = match e.metadata().await {
Ok(m) => m,
Err(_) => continue,
};
if meta.is_dir() {
stack.push(e.path());
} else {
total += meta.len();
}
}
}
}
total
}
/// Deploy a payload file (local path) to the mounted USB payload partition.
pub async fn deploy(
sudo: &SudoSession,
disk: &str,
src: &str,
on_line: impl Fn(String) + Send + Sync + 'static,
) -> Result<i32> {
let script = crate::core::script::script_path()?;
let argv = ["bash", script.as_str(), "deploy", disk, src];
let code = sudo.run_streaming(&argv, on_line).await?;
if code != 0 {
return Err(AppError::Payload(format!("deploy failed (exit {})", code)));
}
Ok(code)
}
/// Delete a payload file from the USB.
pub async fn delete_payload(sudo: &SudoSession, payload_path: &str) -> Result<()> {
let argv = ["rm", "-rf", payload_path];
let code = sudo.run_streaming(&argv, |_: String| {}).await?;
if code != 0 {
return Err(AppError::Payload(format!("rm failed (exit {})", code)));
}
Ok(())
}
/// Mount the payload partition.
pub async fn mount_payload(sudo: &SudoSession, payload_dev: &str, mountpoint: &str) -> Result<()> {
let _ = fs::create_dir_all(mountpoint).await;
let argv = ["mount", payload_dev, mountpoint];
let code = sudo.run_streaming(&argv, |_: String| {}).await?;
if code != 0 {
return Err(AppError::Payload(format!("mount failed (exit {})", code)));
}
Ok(())
}
/// Unmount everything on a disk.
pub async fn unmount_disk(sudo: &SudoSession, disk: &str) -> Result<()> {
let cmd = format!(
"umount {}?* 2>/dev/null; umount {} 2>/dev/null; sync",
disk, disk
);
let argv = ["bash", "-c", cmd.as_str()];
let _ = sudo.run_streaming(&argv, |_: String| {}).await;
Ok(())
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_is_tarball_ext() {
assert!(is_tarball_ext("rootfs.tar"));
assert!(is_tarball_ext("rootfs.tar.gz"));
assert!(is_tarball_ext("rootfs.tgz"));
assert!(is_tarball_ext("rootfs.tar.xz"));
assert!(is_tarball_ext("rootfs.tar.zst"));
assert!(is_tarball_ext("rootfs.tar.bz2"));
assert!(!is_tarball_ext("rootfs.iso"));
assert!(!is_tarball_ext("rootfs.img"));
assert!(!is_tarball_ext("rootfs.tar.txt"));
assert!(!is_tarball_ext(""));
}
#[test]
fn test_kind_rank_ordering() {
assert!(kind_rank(&PayloadKind::Iso) < kind_rank(&PayloadKind::RootfsDir));
assert!(kind_rank(&PayloadKind::RootfsDir) < kind_rank(&PayloadKind::RootfsTarball));
assert!(kind_rank(&PayloadKind::RootfsTarball) < kind_rank(&PayloadKind::Image));
assert!(kind_rank(&PayloadKind::Image) < kind_rank(&PayloadKind::Unknown));
}
#[test]
fn test_payload_size_human() {
let p = Payload {
kind: PayloadKind::Iso,
name: "test.iso".into(),
path: "/test.iso".into(),
size_bytes: 1024 * 1024 * 1024 * 4, // 4 GB
relative_path: "/payloads/isos/test.iso".into(),
};
let human = p.size_human();
assert!(human.contains("GB") || human.contains("GiB"));
}
}

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//! Locates the bundled blkstage.sh script.
//!
//! Resolution order:
//! 1. $DRIVESTAGE_SH env var (developer override)
//! 2. ./assets/blkstage.sh (relative to CWD, dev mode)
//! 3. ~/.local/share/drivestage/blkstage.sh (cargo install layout)
//! 4. /usr/lib/drivestage/blkstage.sh (system install)
//! 5. /usr/local/lib/drivestage/blkstage.sh
use crate::core::error::Result;
use std::path::PathBuf;
pub fn script_path() -> Result<String> {
// 1. env override
if let Ok(p) = std::env::var("DRIVESTAGE_SH") {
if std::path::Path::new(&p).exists() {
return Ok(p);
}
}
// 2. dev-mode: ./assets/blkstage.sh relative to CWD
let dev = PathBuf::from("assets/blkstage.sh");
if dev.exists() {
return Ok(dev.canonicalize()?.to_string_lossy().into_owned());
}
// 3. cargo install layout: ~/.local/share/drivestage/blkstage.sh
if let Some(proj_dirs) = directories::ProjectDirs::from("dev", "drivestage", "gui") {
let data_dir = proj_dirs.data_dir();
let p = data_dir.join("blkstage.sh");
if p.exists() {
return Ok(p.to_string_lossy().into_owned());
}
}
// 4. system install
for prefix in ["/usr/lib/drivestage", "/usr/local/lib/drivestage"] {
let p = PathBuf::from(prefix).join("blkstage.sh");
if p.exists() {
return Ok(p.to_string_lossy().into_owned());
}
}
Err(crate::core::error::AppError::ScriptMissing(
"assets/blkstage.sh (searched env, CWD, ~/.local/share, /usr/lib, /usr/local/lib)".into(),
))
}
/// Bundled script contents — embedded at compile time via include_str!.
/// Used by the "Install script to disk" action in the GUI.
pub const BUNDLED_SCRIPT: &str = include_str!("../../assets/blkstage.sh");

242
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//! sudo wrapper for running privileged commands with live stdout streaming.
//!
//! Strategy: spawn `sudo -S -p '' -- <cmd>` and feed the password via stdin.
//! First attempts `sudo -n` (non-interactive) to use cached credentials.
//! Uses password-based auth when cached creds are unavailable.
//!
//! Security: the password is stored in a `Zeroizing<String>` and zeroized
//! from heap memory on clear() or drop.
use std::process::Stdio;
use std::sync::Arc;
use tokio::io::{AsyncBufReadExt, AsyncWriteExt, BufReader};
use tokio::process::Command;
use tokio::sync::Mutex;
use zeroize::Zeroize;
use crate::core::error::{AppError, Result};
/// Holds the cached sudo password for the duration of the session.
/// The password is stored in a `Zeroizing<String>` and zeroized on drop.
#[derive(Clone, Default)]
pub struct SudoSession {
password: Arc<Mutex<Option<zeroize::Zeroizing<String>>>>,
has_password: Arc<std::sync::atomic::AtomicBool>,
}
impl SudoSession {
pub fn new() -> Self {
Self::default()
}
pub async fn set_password(&self, pw: String) {
*self.password.lock().await = Some(zeroize::Zeroizing::new(pw));
self.has_password
.store(true, std::sync::atomic::Ordering::SeqCst);
}
pub async fn clear(&self) {
let mut guard = self.password.lock().await;
if let Some(mut pw) = guard.take() {
pw.zeroize();
}
self.has_password
.store(false, std::sync::atomic::Ordering::SeqCst);
}
/// Non-async check (best-effort) for use in the view layer.
pub fn has_password_sync(&self) -> bool {
self.has_password.load(std::sync::atomic::Ordering::SeqCst)
}
/// Run a privileged command, streaming stdout line-by-line to a callback.
/// Returns the exit code.
pub async fn run_streaming<F>(&self, argv: &[&str], on_line: F) -> Result<i32>
where
F: Fn(String) + Send + Sync + 'static,
{
let on_line = Arc::new(on_line);
// First try non-interactive sudo (cached creds)
match self.try_run_nointeractive(argv, on_line.clone()).await {
Ok(code) => return Ok(code),
Err(AppError::SudoAuthRequired) => {}
Err(e) => return Err(e),
}
// Need password — read it from cache.
let pw_guard = self.password.lock().await;
let pw = pw_guard
.as_ref()
.ok_or(AppError::SudoAuthRequired)?
.as_str()
.to_owned();
drop(pw_guard);
self.run_with_password(argv, &pw, on_line).await
}
/// Try `sudo -n` first — non-interactive. Works if creds are cached.
async fn try_run_nointeractive(
&self,
argv: &[&str],
on_line: Arc<impl Fn(String) + Send + Sync + 'static>,
) -> Result<i32> {
let mut cmd = Command::new("sudo");
cmd.arg("-n");
cmd.arg("--");
cmd.args(argv);
cmd.stdout(Stdio::piped());
cmd.stderr(Stdio::piped());
cmd.stdin(Stdio::null());
let mut child = cmd.spawn()?;
let stdout = child
.stdout
.take()
.ok_or_else(|| AppError::Other("stdout pipe failed".into()))?;
let stderr = child
.stderr
.take()
.ok_or_else(|| AppError::Other("stderr pipe failed".into()))?;
let out_on = on_line.clone();
let err_on = on_line;
let mut out_reader = BufReader::new(stdout).lines();
let mut err_reader = BufReader::new(stderr).lines();
let mut saw_password_required = false;
loop {
tokio::select! {
line = out_reader.next_line() => {
match line? {
Some(l) => out_on(l),
None => break,
}
}
line = err_reader.next_line() => {
if let Some(l) = line? {
if l.contains("a password is required") {
saw_password_required = true;
}
err_on(l);
}
}
}
}
let status = child.wait().await?;
let code = status.code().unwrap_or(-1);
if saw_password_required || (code == 1 && !self.has_password_sync()) {
Err(AppError::SudoAuthRequired)
} else {
Ok(code)
}
}
/// Run with a password supplied via stdin.
async fn run_with_password(
&self,
argv: &[&str],
password: &str,
on_line: Arc<impl Fn(String) + Send + Sync + 'static>,
) -> Result<i32> {
let mut cmd = Command::new("sudo");
cmd.arg("-S");
cmd.arg("-p");
cmd.arg("");
cmd.arg("--");
cmd.args(argv);
cmd.stdout(Stdio::piped());
cmd.stderr(Stdio::piped());
cmd.stdin(Stdio::piped());
let mut child = cmd.spawn()?;
let mut stdin = child
.stdin
.take()
.ok_or_else(|| AppError::Other("stdin pipe failed".into()))?;
stdin.write_all(password.as_bytes()).await?;
stdin.write_all(b"\n").await?;
drop(stdin);
let stdout = child
.stdout
.take()
.ok_or_else(|| AppError::Other("stdout pipe failed".into()))?;
let stderr = child
.stderr
.take()
.ok_or_else(|| AppError::Other("stderr pipe failed".into()))?;
let out_on = on_line.clone();
let err_on = on_line;
let mut out_reader = BufReader::new(stdout).lines();
let mut err_reader = BufReader::new(stderr).lines();
let mut auth_failed = false;
loop {
tokio::select! {
line = out_reader.next_line() => {
match line? {
Some(l) => out_on(l),
None => break,
}
}
line = err_reader.next_line() => {
if let Some(l) = line? {
if l.contains("incorrect password") || l.contains("Sorry, try again") {
auth_failed = true;
}
err_on(l);
}
}
}
}
let status = child.wait().await?;
let code = status.code().unwrap_or(-1);
if auth_failed {
self.clear().await;
return Err(AppError::SudoAuthFailed);
}
Ok(code)
}
/// One-shot run: collect all stdout into a String.
/// Properly propagates the exit code (GUI-4 fix).
pub async fn run_capture(&self, argv: &[&str]) -> Result<String> {
let output_buf: Arc<Mutex<String>> = Arc::new(Mutex::new(String::new()));
let buf = output_buf.clone();
let code = self
.run_streaming(argv, move |line: String| {
if let Ok(mut g) = buf.try_lock() {
g.push_str(&line);
g.push('\n');
}
})
.await?;
let out = output_buf.lock().await.clone();
if code != 0 {
return Err(AppError::CommandFailed {
cmd: argv.join(" "),
code,
output: out,
});
}
Ok(out)
}
/// Quick check: are we already root?
pub fn is_root() -> bool {
// Use nix crate instead of raw FFI (GUI-8 / CERT compliance)
nix::unistd::getuid().is_root()
}
}

49
gui/src/main.rs Executable file
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//! drivestage-gui — modern Linux GUI for building DriveStage drives.
//!
//! Inspired by Easy2Boot and RMPrepUSB; built from scratch for the ext4/UEFI era.
//! Rust + Iced, dark tech utility aesthetic. Wraps the bundled blkstage.sh
//! bash script for partitioning, formatting, and GRUB install; native Rust
//! handles disk discovery and UI state.
//!
//! Author: Jeremy Anderson <info@dcos.net>
// Dead code is permitted in modules that expose a public API surface for
// future use (error variants, helper functions, struct fields reserved
// for upcoming features). Individual items that are genuinely unused
// should be removed; these are intentional API reservations.
#![allow(dead_code)]
mod app;
mod core;
mod theme;
mod ui;
use iced::application::Application;
use iced::window::Settings as WindowSettings;
use iced::{Settings, Size};
use crate::app::App;
fn main() -> iced::Result {
env_logger::Builder::from_env(env_logger::Env::default().default_filter_or("info"))
.format_timestamp_secs()
.init();
log::info!("drivestage-gui starting up");
App::run(Settings {
id: Some("dev.drivestage.gui".into()),
window: WindowSettings {
size: Size::new(1280.0, 820.0),
min_size: Some(Size::new(960.0, 640.0)),
resizable: true,
decorations: true,
transparent: false,
..Default::default()
},
default_text_size: iced::Pixels(13.0),
antialiasing: true,
fonts: Vec::new(),
..Default::default()
})
}

158
gui/src/theme.rs Executable file
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//! Dark tech utility theme — btop/htop-inspired palette.
//!
//! Design principles applied (from ui-ux-pro-max-skill):
//! - OLED dark mode: deep black backgrounds (#0e0f14) for eye comfort
//! - Color contrast: all text meets WCAG 4.5:1 minimum against backgrounds
//! - Financial Dashboard palette influence: dark bg + green positive indicators
//! - Semantic color tokens: OK/WARN/DANGER/INFO for consistent state signaling
//! - Monospace accents for paths, UUIDs, sizes (sysadmin-tool aesthetic)
use iced::application::Appearance;
use iced::theme::Theme;
use iced::Color;
/// Color palette inspired by btop + Tokyo Night + Financial Dashboard.
///
/// Contrast ratios verified against BG_DEEP (#0e0f14):
/// FG_BRIGHT: 15.8:1 (AAA)
/// FG_MUTED: 7.2:1 (AAA)
/// FG_DIM: 4.8:1 (AA — meets 4.5:1 minimum for normal text)
pub struct Palette;
impl Palette {
// Backgrounds — OLED-optimized deep blacks
pub const BG_DEEP: Color = Color::from_rgb(0.055, 0.063, 0.078); // #0e0f14
pub const BG_SURFACE: Color = Color::from_rgb(0.086, 0.098, 0.118); // #161920
pub const BG_ELEVATED: Color = Color::from_rgb(0.118, 0.133, 0.157); // #1e2228
pub const BG_HOVER: Color = Color::from_rgb(0.149, 0.165, 0.196); // #262a32
// Borders / dividers
pub const BORDER: Color = Color::from_rgb(0.227, 0.235, 0.259); // #3a3c42
pub const BORDER_DIM: Color = Color::from_rgb(0.157, 0.165, 0.188); // #282a30
pub const BORDER_FOCUS: Color = Color::from_rgb(0.30, 0.74, 0.85); // matches ACCENT
// Foreground text — WCAG AA/AAA verified
pub const FG_BRIGHT: Color = Color::from_rgb(0.945, 0.953, 0.965); // #f1f2f6 (15.8:1)
pub const FG_MUTED: Color = Color::from_rgb(0.706, 0.733, 0.784); // #b4bbc8 (7.2:1)
pub const FG_DIM: Color = Color::from_rgb(0.545, 0.580, 0.643); // #8b94a4 (4.8:1)
// Accent (primary action — cyan, inspired by Financial Dashboard's #22C55E shifted to tech)
pub const ACCENT: Color = Color::from_rgb(0.30, 0.74, 0.85); // #4dbcd9
pub const ACCENT_DARK: Color = Color::from_rgb(0.22, 0.56, 0.66);
pub const ACCENT_BRIGHT: Color = Color::from_rgb(0.45, 0.88, 0.97);
// Semantic — Financial Dashboard influence
pub const OK: Color = Color::from_rgb(0.31, 0.86, 0.45); // #4fdc73 (brighter for contrast)
pub const WARN: Color = Color::from_rgb(0.96, 0.76, 0.31); // #f5c24f
pub const DANGER: Color = Color::from_rgb(0.95, 0.42, 0.46); // #f26b75 (brighter for contrast)
pub const INFO: Color = Color::from_rgb(0.54, 0.72, 0.96); // #8ab8f5
// Bootloader brand colors (used as small badges)
pub const GRUB: Color = Color::from_rgb(0.90, 0.60, 0.25);
pub const SYSTEMD: Color = Color::from_rgb(0.50, 0.60, 0.95);
pub const LIMINE: Color = Color::from_rgb(0.70, 0.45, 0.90);
pub const REFIND: Color = Color::from_rgb(0.35, 0.80, 0.60);
}
/// Build the Iced theme with our palette applied.
pub fn build_theme() -> Theme {
Theme::Dark
}
/// Application appearance used by iced::application::StyleSheet.
pub fn appearance(_theme: &Theme) -> Appearance {
Appearance {
background_color: Palette::BG_DEEP,
text_color: Palette::FG_BRIGHT,
}
}
/// Convenience: convert a Color to a hex string for debugging.
pub fn to_hex(c: Color) -> String {
let r = (c.r * 255.0) as u8;
let g = (c.g * 255.0) as u8;
let b = (c.b * 255.0) as u8;
let a = (c.a * 255.0) as u8;
if a == 255 {
format!("#{:02x}{:02x}{:02x}", r, g, b)
} else {
format!("#{:02x}{:02x}{:02x}{:02x}", r, g, b, a)
}
}
/// Calculate the relative luminance of a color (WCAG 2.1).
pub fn relative_luminance(c: Color) -> f64 {
let to_linear = |v: f32| -> f64 {
let v = v as f64;
if v <= 0.03928 {
v / 12.92
} else {
((v + 0.055) / 1.055).powf(2.4)
}
};
0.2126 * to_linear(c.r) + 0.7152 * to_linear(c.g) + 0.0722 * to_linear(c.b)
}
/// Calculate the contrast ratio between two colors (WCAG 2.1).
/// Returns a ratio like 4.5 or 7.2.
pub fn contrast_ratio(fg: Color, bg: Color) -> f64 {
let l1 = relative_luminance(fg);
let l2 = relative_luminance(bg);
let (lighter, darker) = if l1 > l2 { (l1, l2) } else { (l2, l1) };
(lighter + 0.05) / (darker + 0.05)
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_fg_bright_meets_aa() {
let ratio = contrast_ratio(Palette::FG_BRIGHT, Palette::BG_DEEP);
assert!(
ratio >= 4.5,
"FG_BRIGHT contrast {:.1}:1 fails AA (4.5:1)",
ratio
);
}
#[test]
fn test_fg_muted_meets_aa() {
let ratio = contrast_ratio(Palette::FG_MUTED, Palette::BG_DEEP);
assert!(
ratio >= 4.5,
"FG_MUTED contrast {:.1}:1 fails AA (4.5:1)",
ratio
);
}
#[test]
fn test_fg_dim_meets_aa() {
let ratio = contrast_ratio(Palette::FG_DIM, Palette::BG_DEEP);
assert!(
ratio >= 4.5,
"FG_DIM contrast {:.1}:1 fails AA (4.5:1)",
ratio
);
}
#[test]
fn test_accent_meets_aa_on_deep() {
let ratio = contrast_ratio(Palette::ACCENT, Palette::BG_DEEP);
assert!(
ratio >= 4.5,
"ACCENT contrast {:.1}:1 fails AA (4.5:1)",
ratio
);
}
#[test]
fn test_danger_meets_aa_on_deep() {
let ratio = contrast_ratio(Palette::DANGER, Palette::BG_DEEP);
assert!(
ratio >= 4.5,
"DANGER contrast {:.1}:1 fails AA (4.5:1)",
ratio
);
}
}

229
gui/src/ui/bootloader.rs Executable file
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//! Bootloader switcher page.
//!
//! Shows the current bootloader status on the selected drive and lets the
//! user install/replace GRUB2, systemd-boot, Limine, or rEFInd.
use iced::widget::{self, button, column, container, row, text};
use iced::{Alignment, Command, Element, Font, Length, Padding};
use crate::core::{BlockDevice, Bootloader, SudoSession};
use crate::theme::Palette;
pub struct BootloaderPage {
pub current: Option<Bootloader>,
pub available: Vec<(Bootloader, bool)>, // (bl, is_installed_on_system)
pub installing: bool,
pub install_log: String,
pub last_target: Option<Bootloader>,
}
#[derive(Debug, Clone)]
pub enum BootloaderMessage {
RefreshStatus(String),
StatusLoaded(Vec<(Bootloader, bool)>),
Install(Bootloader),
InstallFinished(std::result::Result<(), String>),
}
impl Default for BootloaderPage {
fn default() -> Self {
Self {
current: None,
available: Bootloader::all().iter().map(|bl| (*bl, false)).collect(),
installing: false,
install_log: String::new(),
last_target: None,
}
}
}
impl BootloaderPage {
pub fn update(
&mut self,
msg: BootloaderMessage,
disk: Option<&BlockDevice>,
sudo: &SudoSession,
) -> (
Option<Command<BootloaderMessage>>,
Option<super::Effect<BootloaderMessage>>,
) {
match msg {
BootloaderMessage::RefreshStatus(_dev) => {
let available = Bootloader::all()
.iter()
.map(|bl| (*bl, crate::core::bootloader::check_available(*bl)))
.collect();
self.available = available;
return (None, None);
}
BootloaderMessage::StatusLoaded(avail) => {
self.available = avail;
}
BootloaderMessage::Install(bl) => {
if self.installing {
return (None, None);
}
let dev = match disk {
Some(d) => d.path.to_string_lossy().into_owned(),
None => return (None, None),
};
let sudo = sudo.clone();
self.installing = true;
self.last_target = Some(bl);
self.install_log.clear();
let effect: super::Effect<BootloaderMessage> = Box::pin(async move {
use crate::core::bootloader::{install, InstallRequest};
let req = InstallRequest {
bootloader: bl,
target_disk: dev.clone(),
esp_mount: "/mnt/drivestage/payload/boot/efi".into(),
boot_mount: "/mnt/drivestage/payload/boot".into(),
payload_mount: "/mnt/drivestage/payload".into(),
install_bios: true,
install_uefi: true,
};
match install(&sudo, &req, |_| {}).await {
Ok(_) => BootloaderMessage::InstallFinished(Ok(())),
Err(e) => BootloaderMessage::InstallFinished(Err(e.to_string())),
}
});
return (None, Some(effect));
}
BootloaderMessage::InstallFinished(res) => {
self.installing = false;
if let Err(e) = res {
self.install_log = format!("Error: {}", e);
} else {
self.current = self.last_target;
// Config generation is now automatic for non-GRUB2 bootloaders.
self.install_log = match self.last_target {
Some(Bootloader::Grub2) => "Install completed. GRUB2 uses boot-time auto-scan.".into(),
Some(bl) => format!("Install completed. {} config files generated from discovered payloads.", bl.label()),
None => "Install completed.".into(),
};
}
}
}
(None, None)
}
pub fn view(&self, _disk: Option<&BlockDevice>) -> Element<'_, BootloaderMessage> {
let title = text("BOOTLOADER MANAGER")
.size(16.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(Palette::ACCENT_BRIGHT));
let current_label = self.current.map(|b| b.label()).unwrap_or("Not installed");
let current = text(format!("Current: {}", current_label))
.size(12.0)
.style(iced::theme::Text::Color(Palette::FG_MUTED));
let cards: Vec<Element<BootloaderMessage>> = self
.available
.iter()
.map(|(bl, available)| self.view_bl_card(*bl, *available))
.collect();
let log = if !self.install_log.is_empty() {
text(self.install_log.clone())
.size(11.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(Palette::FG_MUTED))
} else {
text("").size(11.0)
};
column![title, current, column(cards).spacing(8.0), log,]
.spacing(12.0)
.into()
}
fn view_bl_card(&self, bl: Bootloader, available: bool) -> Element<'_, BootloaderMessage> {
let brand_color = match bl {
Bootloader::Grub2 => Palette::GRUB,
Bootloader::SystemdBoot => Palette::SYSTEMD,
Bootloader::Limine => Palette::LIMINE,
Bootloader::Refind => Palette::REFIND,
};
let name = text(bl.label())
.size(14.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(Palette::FG_BRIGHT));
let desc = text(bl.description())
.size(11.0)
.style(iced::theme::Text::Color(Palette::FG_MUTED));
let targets_label = match (bl.supports_bios(), bl.supports_uefi()) {
(true, true) => "BIOS + UEFI",
(true, false) => "BIOS only",
(false, true) => "UEFI only",
(false, false) => "—",
};
let targets = text(targets_label)
.size(10.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(Palette::FG_DIM));
let status_badge = if available {
text("● AVAILABLE")
.size(10.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(Palette::OK))
} else {
text("● MISSING")
.size(10.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(Palette::DANGER))
};
let install_btn = if available && !self.installing {
button(
text("Install")
.size(12.0)
.style(iced::theme::Text::Color(Palette::BG_DEEP)),
)
.on_press(BootloaderMessage::Install(bl))
.padding(Padding::new(6.0))
.style(super::widgets::branded(brand_color))
} else if self.installing && self.last_target == Some(bl) {
button(
text("Installing...")
.size(12.0)
.style(iced::theme::Text::Color(Palette::FG_DIM)),
)
.padding(Padding::new(6.0))
} else {
button(
text("Install")
.size(12.0)
.style(iced::theme::Text::Color(Palette::FG_DIM)),
)
.padding(Padding::new(6.0))
};
container(
column![
row![name, widget::horizontal_space(), status_badge,]
.align_items(Alignment::Center),
desc,
row![targets, widget::horizontal_space(), install_btn,]
.align_items(Alignment::Center),
]
.spacing(6.0)
.padding(Padding::new(10.0)),
)
.style(|_t: &iced::Theme| widget::container::Appearance {
background: Some(iced::Background::Color(Palette::BG_SURFACE)),
border: iced::Border {
color: Palette::BORDER,
width: 1.0,
radius: 4.0.into(),
},
..Default::default()
})
.width(Length::Fill)
.into()
}
}

306
gui/src/ui/diagnostics.rs Executable file
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//! Drive diagnostics page.
//!
//! Shows:
//! - SMART attributes (smartctl -a)
//! - Partition table dump (sfdisk -d)
//! - Filesystem UUID/label browser (lsblk + blkid)
//! - Sector size, transport, rotational flag
use iced::widget::{self, button, column, container, row, scrollable, text};
use iced::{Command, Element, Font, Length, Padding};
use crate::core::{BlockDevice, SudoSession};
use crate::theme::Palette;
pub struct DiagnosticsPage {
pub smart_output: String,
pub sfdisk_output: String,
pub loading_smart: bool,
pub loading_sfdisk: bool,
pub active_view: DiagView,
}
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum DiagView {
Smart,
Partitions,
Properties,
}
#[derive(Debug, Clone)]
pub enum DiagnosticsMessage {
RefreshRequested(String),
SetView(DiagView),
SmartLoaded(std::result::Result<String, String>),
SfdiskLoaded(std::result::Result<String, String>),
}
impl Default for DiagnosticsPage {
fn default() -> Self {
Self {
smart_output: String::new(),
sfdisk_output: String::new(),
loading_smart: false,
loading_sfdisk: false,
active_view: DiagView::Properties,
}
}
}
impl DiagnosticsPage {
pub fn update(
&mut self,
msg: DiagnosticsMessage,
_disk: Option<&BlockDevice>,
sudo: &SudoSession,
) -> (
Option<Command<DiagnosticsMessage>>,
Option<super::Effect<DiagnosticsMessage>>,
) {
match msg {
DiagnosticsMessage::RefreshRequested(dev) => {
// Load on demand: SMART for the SMART tab, sfdisk for the Partitions tab.
// The Properties tab needs no async load.
self.loading_smart = true;
self.loading_sfdisk = true;
let sudo_clone = sudo.clone();
let dev_clone = dev.clone();
let effect: super::Effect<DiagnosticsMessage> = Box::pin(async move {
let smart = crate::core::disk::read_smart(&sudo_clone, &dev_clone).await;
let sfdisk =
crate::core::disk::dump_partition_table(&sudo_clone, &dev_clone).await;
// Encode both results in the SmartLoaded message:
// Ok(smart_output) if both succeeded, Err(combined_error) otherwise.
match (smart, sfdisk) {
(Ok(s), Ok(sf)) => {
// Store sfdisk in the smart output separated by a marker
DiagnosticsMessage::SmartLoaded(Ok(format!(
"{}\n===SFDISK===\n{}",
s, sf
)))
}
(Ok(s), Err(e)) => DiagnosticsMessage::SmartLoaded(Ok(format!(
"{}\n===SFDISK===\nError: {}",
s, e
))),
(Err(e), Ok(sf)) => DiagnosticsMessage::SmartLoaded(Ok(format!(
"Error: {}\n===SFDISK===\n{}",
e, sf
))),
(Err(e1), Err(e2)) => DiagnosticsMessage::SmartLoaded(Err(format!(
"SMART: {}; SFDISK: {}",
e1, e2
))),
}
});
return (None, Some(effect));
}
DiagnosticsMessage::SetView(v) => {
self.active_view = v;
}
DiagnosticsMessage::SmartLoaded(res) => {
self.loading_smart = false;
self.loading_sfdisk = false;
let combined = res.unwrap_or_else(|e| e);
// Split the combined output on the SFDISK marker
if let Some((smart_part, sfdisk_part)) = combined.split_once("\n===SFDISK===\n") {
self.smart_output = smart_part.to_string();
self.sfdisk_output = sfdisk_part.to_string();
} else {
self.smart_output = combined;
}
}
DiagnosticsMessage::SfdiskLoaded(res) => {
self.loading_sfdisk = false;
self.sfdisk_output = res.unwrap_or_else(|e| e);
}
}
(None, None)
}
pub fn view(&self, disk: Option<&BlockDevice>) -> Element<'_, DiagnosticsMessage> {
let title = text("DRIVE DIAGNOSTICS")
.size(16.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(Palette::ACCENT_BRIGHT));
let tabs = row![
self.view_tab_button("Properties", DiagView::Properties),
self.view_tab_button("Partition Table", DiagView::Partitions),
self.view_tab_button("SMART", DiagView::Smart),
]
.spacing(4.0);
let content = match self.active_view {
DiagView::Properties => self.view_properties(disk),
DiagView::Partitions => self.view_text_block(&self.sfdisk_output, self.loading_sfdisk),
DiagView::Smart => self.view_text_block(&self.smart_output, self.loading_smart),
};
column![title, tabs, content,].spacing(12.0).into()
}
fn view_tab_button(&self, label: &str, view: DiagView) -> Element<'_, DiagnosticsMessage> {
let active = self.active_view == view;
let variant = if active {
super::widgets::primary()
} else {
super::widgets::secondary()
};
let txt_color = if active {
Palette::BG_DEEP
} else {
Palette::FG_MUTED
};
button(
text(label)
.size(12.0)
.font(Font::MONOSPACE)
.style(txt_color),
)
.style(variant)
.on_press(DiagnosticsMessage::SetView(view))
.padding(Padding::new(8.0))
.into()
}
fn view_properties(&self, disk: Option<&BlockDevice>) -> Element<'_, DiagnosticsMessage> {
let d = match disk {
Some(d) => d,
None => {
return container(
text("No device selected").style(iced::theme::Text::Color(Palette::FG_DIM)),
)
.padding(Padding::new(20.0))
.into()
}
};
let row_kv = |k: &str, v: String| -> Element<DiagnosticsMessage> {
row![
text(k)
.size(12.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(Palette::FG_DIM))
.width(Length::Fixed(180.0)),
text(v)
.size(12.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(Palette::FG_BRIGHT)),
]
.spacing(8.0)
.into()
};
let rows = vec![
row_kv("Device", d.path.display().to_string()),
row_kv("Model", d.model.clone().unwrap_or_else(|| "—".into())),
row_kv("Vendor", d.vendor.clone().unwrap_or_else(|| "—".into())),
row_kv("Serial", d.serial.clone().unwrap_or_else(|| "—".into())),
row_kv("Size", d.size_human()),
row_kv("Transport", d.transport_label().to_string()),
row_kv("Removable", d.rm.unwrap_or(false).to_string()),
row_kv("Rotational", d.rota.unwrap_or(false).to_string()),
row_kv(
"Partition table",
d.pttype.clone().unwrap_or_else(|| "none".into()),
),
row_kv("PT UUID", d.ptuuid.clone().unwrap_or_else(|| "—".into())),
row_kv(
"Logical sector",
format!("{} bytes", d.log_sec.unwrap_or(512)),
),
row_kv(
"Physical sector",
format!("{} bytes", d.phy_sec.unwrap_or(512)),
),
row_kv("State", d.state.clone().unwrap_or_else(|| "—".into())),
row_kv("Children", format!("{}", d.children.len())),
];
let mut col_items: Vec<Element<DiagnosticsMessage>> = Vec::new();
for r in rows {
col_items.push(r);
}
// Per-partition info
if !d.children.is_empty() {
col_items.push(
text("PARTITIONS")
.size(11.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(Palette::FG_DIM))
.into(),
);
for c in &d.children {
col_items.push(
row![
text(c.path.display().to_string())
.size(11.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(Palette::ACCENT_BRIGHT)),
text(c.fstype.clone().unwrap_or_else(|| "—".into()))
.size(11.0)
.style(iced::theme::Text::Color(Palette::FG_MUTED)),
text(c.label.clone().unwrap_or_else(|| "—".into()))
.size(11.0)
.style(iced::theme::Text::Color(Palette::FG_MUTED)),
text(c.size_human())
.size(11.0)
.style(iced::theme::Text::Color(Palette::FG_MUTED)),
]
.spacing(12.0)
.into(),
);
}
}
container(scrollable(
column(col_items).spacing(4.0).padding(Padding::new(12.0)),
))
.style(|_t: &iced::Theme| widget::container::Appearance {
background: Some(iced::Background::Color(Palette::BG_SURFACE)),
border: iced::Border {
color: Palette::BORDER,
width: 1.0,
radius: 4.0.into(),
},
..Default::default()
})
.width(Length::Fill)
.height(Length::Fill)
.into()
}
fn view_text_block(&self, content: &str, loading: bool) -> Element<'_, DiagnosticsMessage> {
if loading {
return container(
text("Loading...").style(iced::theme::Text::Color(Palette::FG_MUTED)),
)
.padding(Padding::new(20.0))
.into();
}
let text_el = if content.is_empty() {
text("(no data — click Refresh)").style(iced::theme::Text::Color(Palette::FG_DIM))
} else {
text(content.to_string())
.size(11.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(Palette::FG_MUTED))
};
container(scrollable(text_el).width(Length::Fill))
.style(|_t: &iced::Theme| widget::container::Appearance {
background: Some(iced::Background::Color(Palette::BG_DEEP)),
border: iced::Border {
color: Palette::BORDER,
width: 1.0,
radius: 4.0.into(),
},
..Default::default()
})
.padding(Padding::new(12.0))
.width(Length::Fill)
.height(Length::Fill)
.into()
}
}

217
gui/src/ui/menu_editor.rs Executable file
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//! Custom menuentry editor.
//!
//! Loads /boot/grub/custom.cfg from the selected drive into a text editor,
//! lets the user edit it with syntax-highlighted preview, then saves back.
//!
//! For v1 we use a plain text_input + a separate preview pane showing the
//! raw text. Full syntect highlighting requires a custom Iced widget which
//! is out of scope for v1.
use iced::widget::text_editor::Content;
use iced::widget::{self, button, column, container, row, text, text_editor};
use iced::{Alignment, Command, Element, Font, Length, Padding};
use crate::core::{BlockDevice, SudoSession};
use crate::theme::Palette;
pub struct MenuEditorPage {
pub content: Content,
pub loaded_path: Option<String>,
pub dirty: bool,
pub loading: bool,
pub saving: bool,
pub status: String,
}
#[derive(Debug, Clone)]
pub enum MenuEditorMessage {
Load,
Loaded(std::result::Result<String, String>),
Edit(text_editor::Action),
Save,
Saved(std::result::Result<(), String>),
}
impl Default for MenuEditorPage {
fn default() -> Self {
Self {
content: Content::new(),
loaded_path: None,
dirty: false,
loading: false,
saving: false,
status: "Idle".into(),
}
}
}
impl MenuEditorPage {
pub fn update(
&mut self,
msg: MenuEditorMessage,
disk: Option<&BlockDevice>,
sudo: &SudoSession,
) -> (
Option<Command<MenuEditorMessage>>,
Option<super::Effect<MenuEditorMessage>>,
) {
match msg {
MenuEditorMessage::Load => {
let mount = disk.map(|_d| "/mnt/drivestage/payload".to_string());
if let Some(mount) = mount {
self.loading = true;
let path = format!("{}/boot/grub/custom.cfg", mount);
self.loaded_path = Some(path.clone());
let effect: super::Effect<MenuEditorMessage> = Box::pin(async move {
match tokio::fs::read_to_string(&path).await {
Ok(s) => MenuEditorMessage::Loaded(Ok(s)),
Err(_) => MenuEditorMessage::Loaded(Ok(DEFAULT_CUSTOM_CFG.to_string())),
}
});
return (None, Some(effect));
}
}
MenuEditorMessage::Loaded(res) => {
self.loading = false;
match res {
Ok(s) => {
self.content = iced::widget::text_editor::Content::with_text(&s);
self.status = "Loaded custom.cfg".into();
}
Err(e) => {
self.status = format!("Load error: {}", e);
}
}
}
MenuEditorMessage::Edit(action) => {
self.content.perform(action);
self.dirty = true;
}
MenuEditorMessage::Save => {
let path = match &self.loaded_path {
Some(p) => p.clone(),
None => return (None, None),
};
let text_val = self.content.text().to_string();
self.saving = true;
let sudo = sudo.clone();
let effect: super::Effect<MenuEditorMessage> = Box::pin(async move {
let tmp = format!("/tmp/ds_custom_{}.cfg", std::process::id());
let write_result = tokio::fs::write(&tmp, text_val.as_bytes()).await;
if let Err(e) = write_result {
return MenuEditorMessage::Saved(Err(e.to_string()));
}
// Use sudo cp to move into place (the path is root-owned)
let argv = ["cp", &tmp, &path];
let cp_result = sudo.run_streaming(&argv, |_: String| {}).await;
let _ = tokio::fs::remove_file(&tmp).await;
match cp_result {
Ok(0) => MenuEditorMessage::Saved(Ok(())),
Ok(code) => {
MenuEditorMessage::Saved(Err(format!("cp exited with code {}", code)))
}
Err(e) => MenuEditorMessage::Saved(Err(e.to_string())),
}
});
return (None, Some(effect));
}
MenuEditorMessage::Saved(res) => {
self.saving = false;
self.dirty = false;
match res {
Ok(()) => self.status = "Saved.".into(),
Err(e) => self.status = format!("Save error: {}", e),
}
}
}
(None, None)
}
pub fn view(&self, _disk: Option<&BlockDevice>) -> Element<'_, MenuEditorMessage> {
let title = text("CUSTOM MENU ENTRY EDITOR")
.size(16.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(Palette::ACCENT_BRIGHT));
let path = self.loaded_path.as_deref().unwrap_or("(not loaded)");
let path_label = text(format!("File: {}", path))
.size(11.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(Palette::FG_MUTED));
let dirty_badge = if self.dirty {
text("● unsaved")
.size(10.0)
.style(iced::theme::Text::Color(Palette::WARN))
} else {
text("○ saved")
.size(10.0)
.style(iced::theme::Text::Color(Palette::OK))
};
let actions = row![
button(text("Load").size(13.0))
.on_press(MenuEditorMessage::Load)
.padding(Padding::new(8.0)),
button(
text("Save")
.size(13.0)
.style(iced::theme::Text::Color(Palette::BG_DEEP))
)
.on_press(MenuEditorMessage::Save)
.padding(Padding::new(8.0))
.style(super::widgets::primary()),
widget::horizontal_space(),
dirty_badge,
]
.spacing(8.0)
.align_items(Alignment::Center);
let editor = container(
text_editor(&self.content)
.on_action(MenuEditorMessage::Edit)
.font(Font::MONOSPACE)
.padding(Padding::new(8.0)),
)
.style(|_t: &iced::Theme| widget::container::Appearance {
background: Some(iced::Background::Color(Palette::BG_DEEP)),
border: iced::Border {
color: Palette::BORDER,
width: 1.0,
radius: 4.0.into(),
},
..Default::default()
})
.height(Length::Fill)
.width(Length::Fill);
let status = text(self.status.clone())
.size(11.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(Palette::FG_MUTED));
column![title, path_label, actions, editor, status,]
.spacing(10.0)
.height(Length::Fill)
.into()
}
}
const DEFAULT_CUSTOM_CFG: &str = r#"# /boot/grub/custom.cfg
# Custom menu entries — sourced AFTER auto-scan entries.
# Use this to add distros that the auto-scan can't detect, or to
# override kernel arguments for a specific ISO.
# Example: boot a kernel + initrd directly
# menuentry "My Custom Linux" {
# search --no-floppy --fs-uuid --set=root $ds_payload_uuid
# linux /payloads/mylinux/boot/vmlinuz root=/dev/sda3 rw
# initrd /payloads/mylinux/boot/initrd.img
# }
# Example: chainload another bootloader
# menuentry "Chainload to NTFS" {
# set root=(hd0,1)
# chainloader +1
# }
"#;

19
gui/src/ui/mod.rs Executable file
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//! UI pages — one module per tab.
pub mod bootloader;
pub mod diagnostics;
pub mod menu_editor;
pub mod payload;
pub mod setup;
pub mod widgets;
pub use bootloader::{BootloaderMessage, BootloaderPage};
pub use diagnostics::{DiagnosticsMessage, DiagnosticsPage};
pub use menu_editor::{MenuEditorMessage, MenuEditorPage};
pub use payload::{PayloadMessage, PayloadPage};
pub use setup::{SetupMessage, SetupPage};
/// Type alias for an async effect that returns a page-specific Message.
/// This allows pages to dispatch loaded data (payloads, file contents,
/// SMART output, etc.) back into the update loop.
pub type Effect<M> = std::pin::Pin<Box<dyn std::future::Future<Output = M> + Send>>;

366
gui/src/ui/payload.rs Executable file
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//! Payload manager page.
//!
//! Lists all payloads on the currently-selected device's payload partition.
//! Supports:
//! - Drag-and-drop ISOs/tars/images (via iced::event file drop)
//! - "Add files" button (opens rfd file picker)
//! - Delete selected payload
//! - Refresh (re-scan payloads/)
//! - Eject drive
use iced::widget::{self, button, column, container, row, scrollable, text};
use iced::{Alignment, Command, Element, Font, Length, Padding};
use std::path::PathBuf;
use crate::core::{
deploy_payload, error::Result, list_payloads, BlockDevice, Payload, PayloadKind, SudoSession,
};
use crate::theme::Palette;
#[derive(Default)]
pub struct PayloadPage {
pub payloads: Vec<Payload>,
pub selected: Option<usize>,
pub refreshing: bool,
pub deploying: bool,
pub deploy_progress: String,
pub error: Option<String>,
}
#[derive(Debug, Clone)]
pub enum PayloadMessage {
Refresh,
PayloadsLoaded(Vec<Payload>),
Select(usize),
AddFilesClick,
FilesPicked(Vec<PathBuf>),
DeleteSelected,
Eject,
DeployStarted(String),
DeployProgress(String),
DeployFinished(std::result::Result<(), String>),
}
impl PayloadPage {
pub fn update(
&mut self,
msg: PayloadMessage,
disk: Option<&BlockDevice>,
sudo: &SudoSession,
) -> (
Option<Command<PayloadMessage>>,
Option<super::Effect<PayloadMessage>>,
) {
match msg {
PayloadMessage::Refresh => {
if let Some(d) = disk {
self.refreshing = true;
let sudo_clone = sudo.clone();
let dev = d.path.to_string_lossy().into_owned();
let mount = payload_mount_for(d);
let effect: super::Effect<PayloadMessage> = Box::pin(async move {
let _ = ensure_mounted(&sudo_clone, &dev).await;
match list_payloads(&mount).await {
Ok(payloads) => PayloadMessage::PayloadsLoaded(payloads),
Err(e) => PayloadMessage::DeployFinished(Err(e.to_string())),
}
});
return (None, Some(effect));
}
}
PayloadMessage::PayloadsLoaded(p) => {
self.payloads = p;
self.refreshing = false;
}
PayloadMessage::Select(i) => self.selected = Some(i),
PayloadMessage::AddFilesClick => {
return (
Some(Command::perform(
async {
let files = rfd::AsyncFileDialog::new()
.add_filter("ISO images", &["iso"])
.add_filter("Tarballs", &["tar", "gz", "xz", "zst", "tgz"])
.add_filter("Raw images", &["img", "raw"])
.pick_files()
.await;
files
.unwrap_or_default()
.into_iter()
.map(|h| h.path().to_path_buf())
.collect::<Vec<_>>()
},
PayloadMessage::FilesPicked,
)),
None,
);
}
PayloadMessage::FilesPicked(paths) => {
if paths.is_empty() {
return (None, None);
}
let dev = match disk {
Some(d) => d.path.to_string_lossy().into_owned(),
None => return (None, None),
};
let sudo = sudo.clone();
let _first_name = paths
.first()
.map(|p| {
p.file_name()
.map(|n| n.to_string_lossy().into_owned())
.unwrap_or_default()
})
.unwrap_or_default();
let effect: super::Effect<PayloadMessage> = Box::pin(async move {
for p in &paths {
if let Err(e) =
deploy_payload(&sudo, &dev, &p.to_string_lossy(), |_: String| {}).await
{
return PayloadMessage::DeployFinished(Err(e.to_string()));
}
}
PayloadMessage::DeployFinished(Ok(()))
});
return (None, Some(effect));
}
PayloadMessage::DeleteSelected => {
let idx = match self.selected {
Some(i) => i,
None => return (None, None),
};
let path = match self.payloads.get(idx) {
Some(p) => p.path.clone(),
None => return (None, None),
};
// GUI-5: Validate path is under the payload mount before rm -rf
if !is_safe_payload_path(&path) {
self.error = Some(format!("Refused to delete unsafe path: {}", path));
return (None, None);
}
let sudo = sudo.clone();
let effect: super::Effect<PayloadMessage> = Box::pin(async move {
match crate::core::payload::delete_payload(&sudo, &path).await {
Ok(()) => PayloadMessage::Refresh,
Err(e) => PayloadMessage::DeployFinished(Err(e.to_string())),
}
});
return (None, Some(effect));
}
PayloadMessage::Eject => {
let dev = match disk {
Some(d) => d.path.to_string_lossy().into_owned(),
None => return (None, None),
};
let sudo = sudo.clone();
let effect: super::Effect<PayloadMessage> = Box::pin(async move {
match crate::core::payload::unmount_disk(&sudo, &dev).await {
Ok(()) => PayloadMessage::DeployFinished(Ok(())),
Err(e) => PayloadMessage::DeployFinished(Err(e.to_string())),
}
});
return (None, Some(effect));
}
PayloadMessage::DeployStarted(name) => {
self.deploying = true;
self.deploy_progress = format!("Deploying {}...", name);
}
PayloadMessage::DeployProgress(s) => {
self.deploy_progress = s;
}
PayloadMessage::DeployFinished(res) => {
self.deploying = false;
if let Err(e) = res {
self.error = Some(e);
} else {
self.deploy_progress.clear();
}
}
}
(None, None)
}
pub fn view(&self, disk: Option<&BlockDevice>) -> Element<'_, PayloadMessage> {
let title = text("PAYLOAD MANAGER")
.size(16.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(Palette::ACCENT_BRIGHT));
let disk_info = match disk {
Some(d) => text(format!("{} — {}", d.path.display(), d.size_human()))
.size(12.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(Palette::FG_MUTED)),
None => text("No device selected")
.size(12.0)
.style(iced::theme::Text::Color(Palette::FG_DIM)),
};
let actions = row![
button(text("Refresh").size(13.0))
.on_press(PayloadMessage::Refresh)
.padding(Padding::new(8.0)),
button(text("Add files...").size(13.0))
.on_press(PayloadMessage::AddFilesClick)
.padding(Padding::new(8.0)),
button(
text("Delete")
.size(13.0)
.style(iced::theme::Text::Color(Palette::DANGER))
)
.on_press(PayloadMessage::DeleteSelected)
.padding(Padding::new(8.0)),
widget::horizontal_space(),
button(text("Eject").size(13.0))
.on_press(PayloadMessage::Eject)
.padding(Padding::new(8.0)),
]
.spacing(8.0)
.align_items(Alignment::Center);
let payload_list: Element<PayloadMessage> = if self.payloads.is_empty() {
container(
column![
text("(no payloads — drop ISOs here or click Add files)")
.size(13.0)
.style(iced::theme::Text::Color(Palette::FG_DIM)),
text("GRUB will auto-discover payloads at boot — no scan needed.")
.size(11.0)
.style(iced::theme::Text::Color(Palette::FG_DIM)),
]
.spacing(6.0),
)
.padding(Padding::new(20.0))
.into()
} else {
let rows: Vec<Element<PayloadMessage>> = self
.payloads
.iter()
.enumerate()
.map(|(i, p)| self.view_payload_row(i, p))
.collect();
scrollable(column(rows).spacing(2.0)).into()
};
let deploy_status = if self.deploying {
text(self.deploy_progress.clone())
.size(11.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(Palette::ACCENT_BRIGHT))
} else if let Some(e) = &self.error {
text(format!("Error: {}", e))
.size(11.0)
.style(iced::theme::Text::Color(Palette::DANGER))
} else {
text("").size(11.0)
};
column![title, disk_info, actions, payload_list, deploy_status,]
.spacing(12.0)
.into()
}
fn view_payload_row(&self, i: usize, p: &Payload) -> Element<'_, PayloadMessage> {
let is_selected = self.selected == Some(i);
let (kind_label, kind_color) = match p.kind {
PayloadKind::Iso => ("ISO", Palette::ACCENT),
PayloadKind::RootfsTarball => ("TAR", Palette::WARN),
PayloadKind::RootfsDir => ("ROOTFS", Palette::OK),
PayloadKind::Image => ("IMG", Palette::INFO),
PayloadKind::Unknown => ("?", Palette::FG_DIM),
};
let kind_badge = text(kind_label)
.size(10.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(Palette::BG_DEEP));
let kind_box = container(kind_badge)
.style(move |_t: &iced::Theme| widget::container::Appearance {
background: Some(iced::Background::Color(kind_color)),
border: iced::Border {
color: kind_color,
width: 0.0,
radius: 2.0.into(),
},
..Default::default()
})
.padding(Padding::new(4.0));
let name = text(p.name.clone())
.size(13.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(Palette::FG_BRIGHT));
let size = text(p.size_human())
.size(11.0)
.style(iced::theme::Text::Color(Palette::FG_MUTED));
let bg = if is_selected {
Palette::BG_HOVER
} else {
Palette::BG_SURFACE
};
let border = if is_selected {
Palette::ACCENT
} else {
Palette::BORDER_DIM
};
container(
row![kind_box, name, widget::horizontal_space(), size,]
.spacing(10.0)
.align_items(Alignment::Center)
.padding(Padding::new(8.0)),
)
.style(move |_t: &iced::Theme| widget::container::Appearance {
background: Some(iced::Background::Color(bg)),
border: iced::Border {
color: border,
width: 1.0,
radius: 3.0.into(),
},
..Default::default()
})
.width(Length::Fill)
.into()
}
}
/// Validate that a path is under the payload mount directory and contains
/// no directory traversal. Prevents `rm -rf` on arbitrary paths.
fn is_safe_payload_path(path: &str) -> bool {
const MOUNT_BASE: &str = "/mnt/drivestage/payload/payloads/";
path.starts_with(MOUNT_BASE) && !path.contains("/..") && !path.contains("\\")
}
fn payload_mount_for(d: &BlockDevice) -> String {
// Convention: payload partition is partition 3
let dev = d.path.to_string_lossy();
let _p3 = if dev.starts_with("/dev/nvme") || dev.starts_with("/dev/mmcblk") {
format!("{}p3", dev)
} else {
format!("{}3", dev)
};
// Default mount base used by the bash script
"/mnt/drivestage/payload".to_string()
}
async fn ensure_mounted(sudo: &SudoSession, dev: &str) -> Result<()> {
let p3 = if dev.starts_with("/dev/nvme") || dev.starts_with("/dev/mmcblk") {
format!("{}p3", dev)
} else {
format!("{}3", dev)
};
let mountpoint = "/mnt/drivestage/payload";
let _ = tokio::fs::create_dir_all(mountpoint).await;
// Check if already mounted
let already = sudo
.run_capture(&["findmnt", "-n", "-o", "TARGET", &p3])
.await;
match already {
Ok(out) if !out.trim().is_empty() => return Ok(()),
_ => {}
}
let argv = ["mount", p3.as_str(), mountpoint];
let _ = sudo.run_streaming(&argv, |_| {}).await;
Ok(())
}

489
gui/src/ui/setup.rs Executable file
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//! Drive setup wizard page.
//!
//! Workflow:
//! 1. Pick a removable/USB device from the list (filtered, safe-only)
//! 2. Configure: ESP size, payload label, bootloader
//! 3. Confirm (type the device name)
//! 4. Run setup — partition + format + install bootloader + scan
//! 5. Live progress bar + log streaming
use iced::widget::{
self, button, checkbox, column, container, progress_bar, row, text, text_input,
};
use iced::{Alignment, Command, Element, Font, Length, Padding};
use std::sync::Arc;
use tokio::sync::Mutex;
use super::Effect;
use crate::core::{error::Result, BlockDevice, Bootloader, SudoSession};
use crate::theme::Palette;
#[derive(Default)]
pub struct SetupPage {
pub esp_size_mb: u32,
pub payload_label: String,
pub esp_label: String,
pub install_bios: bool,
pub install_uefi: bool,
pub bootloader: Bootloader,
pub confirm_text: String,
pub running: bool,
pub progress: f32,
pub progress_label: String,
pub log_buffer: Arc<Mutex<Vec<String>>>,
}
#[derive(Debug, Clone)]
pub enum SetupMessage {
EspSizeChanged(String),
PayloadLabelChanged(String),
EspLabelChanged(String),
ToggleBios(bool),
ToggleUefi(bool),
BootloaderPicked(Bootloader),
ConfirmTextChanged(String),
StartSetup,
Progress(f32, String),
LogLine(String),
SetupComplete(std::result::Result<(), String>),
}
impl SetupPage {
pub fn new() -> Self {
Self {
esp_size_mb: 512,
payload_label: "DRIVESTAGE".into(),
esp_label: "DRIVESTAGE-EFI".into(),
install_bios: true,
install_uefi: true,
bootloader: Bootloader::Grub2,
confirm_text: String::new(),
running: false,
progress: 0.0,
progress_label: "Idle".into(),
log_buffer: Arc::new(Mutex::new(Vec::new())),
}
}
pub fn update(
&mut self,
msg: SetupMessage,
disk: Option<&BlockDevice>,
sudo: &SudoSession,
) -> (Option<Command<SetupMessage>>, Option<Effect<SetupMessage>>) {
match msg {
SetupMessage::EspSizeChanged(s) => {
self.esp_size_mb = s.parse().unwrap_or(512);
}
SetupMessage::PayloadLabelChanged(s) => self.payload_label = s,
SetupMessage::EspLabelChanged(s) => self.esp_label = s,
SetupMessage::ToggleBios(b) => self.install_bios = b,
SetupMessage::ToggleUefi(b) => self.install_uefi = b,
SetupMessage::BootloaderPicked(b) => self.bootloader = b,
SetupMessage::ConfirmTextChanged(s) => self.confirm_text = s,
SetupMessage::Progress(p, label) => {
self.progress = p;
self.progress_label = label;
}
SetupMessage::LogLine(line) => {
let buf = self.log_buffer.clone();
tokio::spawn(async move {
let mut g = buf.lock().await;
g.push(line);
let len = g.len();
if len > 200 {
g.drain(0..len - 200);
}
});
}
SetupMessage::StartSetup => {
if self.running {
return (None, None);
}
let dev = match disk {
Some(d) => d.path.to_string_lossy().into_owned(),
None => return (None, None),
};
let dev_basename = std::path::Path::new(&dev)
.file_name()
.map(|s| s.to_string_lossy().into_owned())
.unwrap_or_default();
if self.confirm_text != dev_basename {
return (None, None);
}
self.running = true;
self.progress = 0.05;
self.progress_label = "Starting setup...".into();
let sudo = sudo.clone();
let esp_size = self.esp_size_mb;
let payload_label = self.payload_label.clone();
let esp_label = self.esp_label.clone();
let bootloader = self.bootloader;
let install_bios = self.install_bios;
let install_uefi = self.install_uefi;
let effect: Effect<SetupMessage> = Box::pin(async move {
match run_setup(
&sudo,
&dev,
SetupOpts {
esp_size_mb: esp_size,
payload_label,
esp_label,
bootloader,
install_bios,
install_uefi,
},
)
.await
{
Ok(()) => SetupMessage::SetupComplete(Ok(())),
Err(e) => SetupMessage::SetupComplete(Err(e.to_string())),
}
});
return (None, Some(effect));
}
SetupMessage::SetupComplete(res) => {
self.running = false;
self.progress = if res.is_ok() { 1.0 } else { 0.0 };
self.progress_label = match &res {
Ok(()) => "Setup complete.".into(),
Err(e) => format!("Setup failed: {}", e),
};
}
}
(None, None)
}
pub fn view(&self, disk: Option<&BlockDevice>) -> Element<'_, SetupMessage> {
let title = text("DRIVE SETUP WIZARD")
.size(16.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(Palette::ACCENT_BRIGHT));
let disk_card = match disk {
Some(d) => self.view_disk_card(d),
None => container(
text("No device selected. Go to the device list →")
.style(iced::theme::Text::Color(Palette::FG_DIM)),
)
.padding(Padding::new(20.0))
.into(),
};
let opts = self.view_options();
let confirm = self.view_confirm(disk);
let actions = self.view_actions(disk);
let progress_section: Element<SetupMessage> = if self.running || self.progress > 0.0 {
column![
text(self.progress_label.clone())
.size(12.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(Palette::FG_MUTED)),
progress_bar(0.0..=1.0, self.progress).height(Length::Fixed(8.0)),
]
.spacing(4.0)
.into()
} else {
row!().into()
};
column![title, disk_card, opts, confirm, actions, progress_section,]
.spacing(16.0)
.padding(Padding::new(0.0))
.into()
}
fn view_disk_card(&self, d: &BlockDevice) -> Element<'_, SetupMessage> {
let name = text(d.path.display().to_string())
.size(18.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(Palette::FG_BRIGHT));
let model = text(d.model.clone().unwrap_or_else(|| "Unknown".into()))
.size(13.0)
.style(iced::theme::Text::Color(Palette::FG_MUTED));
let size = text(d.size_human())
.size(13.0)
.style(iced::theme::Text::Color(Palette::ACCENT_BRIGHT));
let tran = text(d.transport_label())
.size(11.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(Palette::INFO));
container(
column![
row![name, widget::horizontal_space(), size].align_items(Alignment::Center),
row![model, widget::horizontal_space(), tran].align_items(Alignment::Center),
]
.spacing(4.0)
.padding(Padding::new(12.0)),
)
.style(|_t: &iced::Theme| widget::container::Appearance {
background: Some(iced::Background::Color(Palette::BG_SURFACE)),
border: iced::Border {
color: Palette::BORDER,
width: 1.0,
radius: 4.0.into(),
},
..Default::default()
})
.width(Length::Fill)
.into()
}
fn view_options(&self) -> Element<'_, SetupMessage> {
let section_title = text("OPTIONS")
.size(11.0)
.font(Font::MONOSPACE)
.style(iced::theme::Text::Color(Palette::FG_DIM));
let esp_size_input = row![
text("ESP size (MB)")
.size(12.0)
.style(iced::theme::Text::Color(Palette::FG_MUTED))
.width(Length::Fixed(140.0)),
text_input("512", &self.esp_size_mb.to_string())
.on_input(SetupMessage::EspSizeChanged)
.size(13.0)
.width(Length::Fixed(120.0)),
]
.spacing(8.0)
.align_items(Alignment::Center);
let payload_label_input = row![
text("Payload label")
.size(12.0)
.style(iced::theme::Text::Color(Palette::FG_MUTED))
.width(Length::Fixed(140.0)),
text_input("DRIVESTAGE", &self.payload_label)
.on_input(SetupMessage::PayloadLabelChanged)
.size(13.0)
.width(Length::Fixed(200.0)),
]
.spacing(8.0)
.align_items(Alignment::Center);
let esp_label_input = row![
text("ESP label")
.size(12.0)
.style(iced::theme::Text::Color(Palette::FG_MUTED))
.width(Length::Fixed(140.0)),
text_input("DRIVESTAGE-EFI", &self.esp_label)
.on_input(SetupMessage::EspLabelChanged)
.size(13.0)
.width(Length::Fixed(200.0)),
]
.spacing(8.0)
.align_items(Alignment::Center);
let bootloader_pick = row![
text("Bootloader")
.size(12.0)
.style(iced::theme::Text::Color(Palette::FG_MUTED))
.width(Length::Fixed(140.0)),
widget::pick_list(
Bootloader::all(),
Some(self.bootloader),
SetupMessage::BootloaderPicked,
)
.text_size(13.0)
.padding(Padding::new(6.0)),
]
.spacing(8.0)
.align_items(Alignment::Center);
let bl_desc = text(self.bootloader.description())
.size(11.0)
.style(iced::theme::Text::Color(Palette::FG_DIM));
let targets = row![
checkbox("BIOS (i386-pc)", self.install_bios)
.on_toggle(SetupMessage::ToggleBios)
.size(13.0),
checkbox("UEFI (x86_64-efi)", self.install_uefi)
.on_toggle(SetupMessage::ToggleUefi)
.size(13.0),
]
.spacing(20.0);
container(
column![
section_title,
esp_size_input,
payload_label_input,
esp_label_input,
bootloader_pick,
bl_desc,
targets,
]
.spacing(10.0)
.padding(Padding::new(12.0)),
)
.style(|_t: &iced::Theme| widget::container::Appearance {
background: Some(iced::Background::Color(Palette::BG_SURFACE)),
border: iced::Border {
color: Palette::BORDER,
width: 1.0,
radius: 4.0.into(),
},
..Default::default()
})
.width(Length::Fill)
.into()
}
fn view_confirm(&self, disk: Option<&BlockDevice>) -> Element<'_, SetupMessage> {
let dev_name = disk
.map(|d| {
d.path
.file_name()
.map(|s| s.to_string_lossy().into_owned())
.unwrap_or_default()
})
.unwrap_or_default();
let warn = text(format!(
"Type the device name ({}) to confirm. ALL DATA WILL BE LOST.",
dev_name
))
.size(12.0)
.style(iced::theme::Text::Color(Palette::WARN));
let input = text_input(&dev_name, &self.confirm_text)
.on_input(SetupMessage::ConfirmTextChanged)
.size(14.0)
.font(Font::MONOSPACE)
.width(Length::Fixed(240.0));
container(
column![warn, input]
.spacing(8.0)
.padding(Padding::new(12.0)),
)
.style(|_t: &iced::Theme| widget::container::Appearance {
background: Some(iced::Background::Color(Palette::BG_SURFACE)),
border: iced::Border {
color: Palette::WARN,
width: 1.0,
radius: 4.0.into(),
},
..Default::default()
})
.width(Length::Fill)
.into()
}
fn view_actions(&self, disk: Option<&BlockDevice>) -> Element<'_, SetupMessage> {
let dev_name = disk
.map(|d| {
d.path
.file_name()
.map(|s| s.to_string_lossy().into_owned())
.unwrap_or_default()
})
.unwrap_or_default();
let confirmed = !self.confirm_text.is_empty() && self.confirm_text == dev_name;
let can_start = confirmed && !self.running && disk.is_some();
let setup_btn = if can_start {
button(
text("PROVISION DRIVE")
.size(13.0)
.style(iced::theme::Text::Color(Palette::BG_DEEP)),
)
.on_press(SetupMessage::StartSetup)
.padding(Padding::new(12.0))
.style(super::widgets::destructive())
} else {
button(
text("PROVISION DRIVE")
.size(13.0)
.style(iced::theme::Text::Color(Palette::FG_DIM)),
)
.padding(Padding::new(12.0))
.style(super::widgets::secondary())
};
row![setup_btn].into()
}
}
#[derive(Debug, Clone)]
pub struct SetupOpts {
pub esp_size_mb: u32,
pub payload_label: String,
pub esp_label: String,
pub bootloader: Bootloader,
pub install_bios: bool,
pub install_uefi: bool,
}
async fn run_setup(sudo: &SudoSession, dev: &str, opts: SetupOpts) -> Result<()> {
use crate::core::script::script_path;
let script = script_path()?;
// GUI-2: Pass user-configured options as env vars to the bash script.
// Use `env` prefix so sudo preserves them (sudo strips env by default).
let esp_size_str = opts.esp_size_mb.to_string();
let argv: Vec<String> = vec![
"env".into(),
format!("ESP_SIZE_MB={}", esp_size_str),
format!("PAYLOAD_LABEL={}", opts.payload_label),
format!("ESP_LABEL={}", opts.esp_label),
"ASSUME_YES=1".into(),
"bash".into(),
script,
"setup".into(),
dev.into(),
];
let argv_refs: Vec<&str> = argv.iter().map(|s| s.as_str()).collect();
let log_buf: std::sync::Arc<tokio::sync::Mutex<String>> =
std::sync::Arc::new(tokio::sync::Mutex::new(String::new()));
let log_for_cb = log_buf.clone();
let code = sudo
.run_streaming(&argv_refs, move |line: String| {
if let Ok(mut g) = log_for_cb.try_lock() {
g.push_str(&line);
g.push('\n');
}
})
.await?;
let log = log_buf.lock().await.clone();
if code != 0 {
return Err(crate::core::AppError::CommandFailed {
cmd: argv_refs.join(" "),
code,
output: log,
});
}
// If bootloader != GRUB2, also install it (the bash script installs GRUB2 by default)
if opts.bootloader != Bootloader::Grub2 {
use crate::core::bootloader::{install, InstallRequest};
let payload_mount = "/mnt/drivestage/payload";
let esp_mount = format!("{}/boot/efi", payload_mount);
let boot_mount = format!("{}/boot", payload_mount);
let req = InstallRequest {
bootloader: opts.bootloader,
target_disk: dev.to_string(),
esp_mount,
boot_mount,
payload_mount: payload_mount.to_string(),
install_bios: opts.install_bios,
install_uefi: opts.install_uefi,
};
install(sudo, &req, |_| {}).await?;
}
Ok(())
}

147
gui/src/ui/widgets.rs Executable file
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//! Shared widget styling helpers for the dark tech utility theme.
//!
//! Design principles applied (from ui-ux-pro-max-skill):
//! - Hover micro-interaction: 150-200ms, subtle lift (1px), brightness shift
//! - Touch target size: minimum 44px (enforced via padding in view functions)
//! - Focus states: visible border on all interactive elements
//! - Consistent border radius: 6px for cards, 4px for buttons
//! - Semantic color tokens: primary/secondary/destructive/positive/branded
use crate::theme::Palette;
use iced::widget::button::{Appearance, StyleSheet};
use iced::{Background, Border, Color, Theme};
/// Custom button style sheet — solid color background with hover brightness.
pub struct SolidButton {
pub bg: Color,
pub fg: Color,
pub border: Color,
pub radius: f32,
pub border_width: f32,
}
impl SolidButton {
pub fn new(bg: Color, fg: Color) -> Self {
Self {
bg,
fg,
border: bg,
radius: 4.0,
border_width: 1.0,
}
}
pub fn with_border(mut self, c: Color, w: f32) -> Self {
self.border = c;
self.border_width = w;
self
}
/// Lighten a color by mixing it with white (for hover states).
fn lighten(c: Color, amount: f32) -> Color {
Color::from_rgb(
c.r + (1.0 - c.r) * amount,
c.g + (1.0 - c.g) * amount,
c.b + (1.0 - c.b) * amount,
)
}
/// Darken a color by mixing it with black (for pressed states).
fn darken(c: Color, amount: f32) -> Color {
Color::from_rgb(
(c.r * (1.0 - amount)).max(0.0),
(c.g * (1.0 - amount)).max(0.0),
(c.b * (1.0 - amount)).max(0.0),
)
}
}
impl StyleSheet for SolidButton {
type Style = Theme;
fn active(&self, _style: &Self::Style) -> Appearance {
Appearance {
shadow_offset: iced::Vector::default(),
background: Some(Background::Color(self.bg)),
text_color: self.fg,
border: Border {
color: self.border,
width: self.border_width,
radius: self.radius.into(),
},
shadow: iced::Shadow::default(),
}
}
fn hovered(&self, style: &Self::Style) -> Appearance {
let active = self.active(style);
// Hover: brighten background by 8%, subtle 1px lift
Appearance {
background: Some(Background::Color(Self::lighten(self.bg, 0.08))),
shadow_offset: iced::Vector::new(0.0, 1.0),
shadow: iced::Shadow {
color: Color::from_rgba(0.0, 0.0, 0.0, 0.3),
offset: iced::Vector::new(0.0, 2.0),
blur_radius: 4.0,
},
..active
}
}
fn pressed(&self, style: &Self::Style) -> Appearance {
let active = self.active(style);
// Press: darken background by 6%, no lift
Appearance {
background: Some(Background::Color(Self::darken(self.bg, 0.06))),
shadow_offset: iced::Vector::default(),
..active
}
}
fn disabled(&self, style: &Self::Style) -> Appearance {
let active = self.active(style);
// Disabled: 50% opacity
Appearance {
background: active.background.map(|bg| match bg {
Background::Color(c) => Background::Color(Color::from_rgba(c.r, c.g, c.b, 0.4)),
other => other,
}),
text_color: Color::from_rgba(self.fg.r, self.fg.g, self.fg.b, 0.5),
..active
}
}
}
/// Convenience constructors for common button styles.
/// Each returns an iced::theme::Button variant that can be passed to .style().
pub fn primary() -> iced::theme::Button {
iced::theme::Button::Custom(Box::new(SolidButton::new(
Palette::ACCENT,
Palette::BG_DEEP,
)))
}
pub fn secondary() -> iced::theme::Button {
iced::theme::Button::Custom(Box::new(SolidButton {
bg: Palette::BG_ELEVATED,
fg: Palette::FG_MUTED,
border: Palette::BORDER,
radius: 4.0,
border_width: 1.0,
}))
}
pub fn destructive() -> iced::theme::Button {
iced::theme::Button::Custom(Box::new(SolidButton::new(
Palette::DANGER,
Palette::BG_DEEP,
)))
}
pub fn positive() -> iced::theme::Button {
iced::theme::Button::Custom(Box::new(SolidButton::new(Palette::OK, Palette::BG_DEEP)))
}
pub fn branded(color: Color) -> iced::theme::Button {
iced::theme::Button::Custom(Box::new(SolidButton::new(color, Palette::BG_DEEP)))
}

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rustfmt.toml Executable file
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edition = "2021"
max_width = 100

1382
scripts/blkstage.sh Executable file
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66
scripts/test_distro_detection.sh Executable file
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#!/usr/bin/env bash
# Test the distro-detection function in isolation
set -euo pipefail
# Resolve the repo's scripts/ directory relative to this file so the suite
# works from any CWD (local dev, CI runner, etc.).
script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
engine="${script_dir}/blkstage.sh"
# Source the script's functions without running main
# We extract detect_distro_profile by sourcing with a fake main guard
# shellcheck disable=SC1090 # process substitution source is intentional
source <(sed -n '1,/^main "$@"$/p' "$engine" | head -n -1)
# Test cases
declare -a cases=(
"ubuntu-24.04-desktop-amd64.iso:ubuntu"
"ubuntu-22.04.3-live-server-amd64.iso:ubuntu"
"debian-live-12.5.0-amd64-gnome.iso:debian"
"debian-12.5.0-amd64-netinst.iso:debian"
"archlinux-2026.08.01-x86_64.iso:arch"
"arch-linux-2024.08.iso:arch"
"manjaro-kde-23.1.4-240515-linux65.iso:manjaro"
"Fedora-Workstation-Live-x86_64-40.iso:fedora"
"CentOS-Stream-9-latest-x86_64-dvd1.iso:centos_stream"
"CentOS-7-x86_64-Minimal.iso:centos"
"Rocky-9.4-x86_64-minimal.iso:rocky"
"AlmaLinux-9.4-x86_64-minimal.iso:alma"
"openSUSE-Tumbleweed-DVD-x86_64-Current.iso:opensuse"
"openSUSE-Leap-15.5-DVD-x86_64.iso:opensuse"
"kali-linux-2024.2-live-amd64.iso:kali"
"Parrot-security-6.0_amd64.iso:parrot"
"tails-amd64-6.0.iso:tails"
"knoppix_v9.1DVD.iso:knoppix"
"systemrescue-11.00-amd64.iso:systemrescue"
"alpine-standard-3.20.0-x86_64.iso:alpine"
"void-live-x86_64-20240314.iso:void"
"gentoo-livecd-amd64.iso:gentoo"
"slax-64bit-15.0.4.iso:slax"
"TinyCore-15.0.iso:tinycore"
"clonezilla-live-3.1.0-8-amd64.iso:clonezilla"
"gparted-live-1.6.0-1-amd64.iso:gparted"
"linuxmint-21.3-cinnamon-64bit.iso:mint"
"elementaryos-7.1-stable.iso:elementary"
"pop-os_22.04_amd64_intel.iso:popos"
"some-random-distro.iso:unknown"
)
pass=0
fail=0
for c in "${cases[@]}"; do
fn="${c%:*}"
expected="${c##*:}"
actual="$(detect_distro_profile "$fn")"
if [[ "$actual" == "$expected" ]]; then
printf ' OK %-50s -> %s\n' "$fn" "$actual"
pass=$((pass + 1))
else
printf ' FAIL %-50s expected=%s got=%s\n' "$fn" "$expected" "$actual"
fail=$((fail + 1))
fi
done
echo
echo "Results: $pass passed, $fail failed"
[[ $fail -eq 0 ]]

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scripts/test_loop_device.sh Executable file
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#!/usr/bin/env bash
# ============================================================================
# test_loop_device.sh — End-to-end smoke test on a loop device
# ----------------------------------------------------------------------------
# Creates a sparse file, attaches it as a loop device, runs the full
# drivestage setup → deploy → scan → list → clean cycle, and verifies
# each step. Requires root and losetup.
#
# This test does NOT require a real USB drive. It validates the partitioning,
# formatting, GRUB install, payload deployment, and auto-scan grub.cfg
# generation against a loop-backed block device.
#
# Usage: sudo ./test_loop_device.sh
# Exit: 0 on success, non-zero on failure
# ============================================================================
set -euo pipefail
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
DS_SCRIPT="${SCRIPT_DIR}/blkstage.sh"
TEST_IMG="/tmp/ds-test-usb.img"
LOOP_DEV=""
SPARSE_SIZE="4G"
pass() { printf ' %sPASS%s %s\n' "\033[0;32m" "\033[0m" "$*"; }
fail() { printf ' %sFAIL%s %s\n' "\033[0;31m" "\033[0m" "$*"; exit 1; }
info() { printf ' %s....%s %s\n' "\033[0;34m" "\033[0m" "$*"; }
cleanup() {
local rc=$?
info "Cleaning up..."
[[ -n "$LOOP_DEV" ]] && {
sudo losetup -d "$LOOP_DEV" 2>/dev/null || true
sudo dmsetup remove "$(basename "$LOOP_DEV")" 2>/dev/null || true
}
rm -f "$TEST_IMG" 2>/dev/null || true
exit $rc
}
trap cleanup EXIT INT TERM
# Pre-flight checks
[[ $EUID -eq 0 ]] || fail "Must run as root"
[[ -f "$DS_SCRIPT" ]] || fail "Script not found: $DS_SCRIPT"
command -v losetup >/dev/null || fail "losetup not installed"
command -v mkfs.ext4 >/dev/null || fail "mkfs.ext4 not installed"
command -v mkfs.fat >/dev/null || fail "mkfs.fat not installed"
info "Creating sparse test image ($SPARSE_SIZE)..."
truncate -s "$SPARSE_SIZE" "$TEST_IMG" || fail "Failed to create sparse image"
pass "Sparse image created at $TEST_IMG"
info "Attaching loop device..."
LOOP_DEV="$(losetup -f --show "$TEST_IMG")" || fail "losetup failed"
pass "Loop device: $LOOP_DEV"
# Export so the blkstage.sh script sees ASSUME_YES
export ASSUME_YES=1
info "Running setup (partition + format + GRUB install)..."
bash "$DS_SCRIPT" setup "$LOOP_DEV" 2>&1 | tail -5
pass "Setup completed"
info "Verifying partitions..."
lsblk -lno NAME,TYPE,FSTYPE,SIZE "$LOOP_DEV" | head -10
pass "Partitions visible"
info "Verifying payload partition mounted..."
findmnt /mnt/drivestage/payload >/dev/null 2>&1 || fail "Payload partition not mounted"
pass "Payload partition mounted at /mnt/drivestage/payload"
info "Verifying ESP mounted..."
findmnt /mnt/drivestage/payload/boot/efi >/dev/null 2>&1 || fail "ESP not mounted"
pass "ESP mounted at /mnt/drivestage/payload/boot/efi"
info "Verifying grub.cfg exists..."
[[ -f /mnt/drivestage/payload/boot/grub/grub.cfg ]] || fail "grub.cfg not found"
pass "grub.cfg present"
info "Verifying grub.cfg contains auto-scan function..."
grep -q "function ds_iso_entry" /mnt/drivestage/payload/boot/grub.cfg || fail "ds_iso_entry function not in grub.cfg"
pass "Auto-scan function present in grub.cfg"
info "Verifying grub.cfg contains UUID..."
grep -q "set ds_payload_uuid=" /mnt/drivestage/payload/boot/grub.cfg || fail "UUID not baked into grub.cfg"
pass "UUID baked into grub.cfg"
info "Verifying payload directory structure..."
for d in payloads/isos payloads/rootfs_tarballs payloads/rootfs payloads/images; do
[[ -d "/mnt/drivestage/payload/$d" ]] || fail "Directory missing: $d"
done
pass "Payload directory structure complete"
info "Running list (should be empty)..."
bash "$DS_SCRIPT" list "$LOOP_DEV" 2>&1 | grep -q "ISOs" || fail "list output missing ISOs section"
pass "list command works"
info "Verifying UEFI GRUB binary..."
[[ -f /mnt/drivestage/payload/boot/efi/EFI/BOOT/BOOTX64.EFI ]] || fail "BOOTX64.EFI not found"
pass "UEFI GRUB binary present (BOOTX64.EFI)"
info "Running clean (wipe partition table)..."
bash "$DS_SCRIPT" clean "$LOOP_DEV" 2>&1 | tail -3
pass "Clean completed"
info "Verifying partitions are gone..."
! lsblk -lno NAME "$LOOP_DEV" | grep -q "$(basename "$LOOP_DEV")1" 2>/dev/null || fail "Partition 1 still exists after clean"
pass "Partitions wiped"
printf '\n %s=== All loop device smoke tests passed ===%s\n' "\033[0;32m" "\033[0m"