archangel/custom/zfsrollback, branch v0.8Arch Linux installer ISO — ZFS-on-root or BTRFS, doubles as rescue disk
https://git.cjennings.net/archangel/atom?h=v0.82026-02-23T17:54:25+00:00refactor: rename custom/ to installer/ for clarity2026-02-23T17:54:25+00:00Craig Jenningsc@cjennings.net2026-02-23T17:54:25+00:00urn:sha1:6631521d9f45b73f9b4df76db9148d82af8d57b9
The custom/ directory name was an archiso implementation detail. Renamed
to installer/ which clearly communicates that this directory contains the
installer scripts and utilities that ship on the ISO.
Updated all references in build.sh, Makefile, test-install.sh, and README.
scrub personal info and make distribution targets configurable2026-02-23T12:02:17+00:00Craig Jenningsc@cjennings.net2026-02-23T12:02:17+00:00urn:sha1:51636daebfac034380d1122ad5ea22c2e6dd9cf4
Remove personal email addresses, hardcoded paths, and infrastructure
references to prepare for open-source release. Distribution targets
in build-release are now configurable via environment variables,
and archsetup inclusion is opt-in.
fix: correct broken shebangs in zfssnapshot and zfsrollback2026-02-23T05:22:48+00:00Craig Jenningsc@cjennings.net2026-02-23T05:22:48+00:00urn:sha1:26831607be9ae3bbc542bfc352dab718a486cab2
#!/bin/env bash doesn't exist — changed to #!/usr/bin/env bash.
Replace GRUB with ZFSBootMenu bootloader2026-01-23T05:21:18+00:00Craig Jenningsc@cjennings.net2026-01-23T05:21:18+00:00urn:sha1:0ffe7a85a1b024b88e4ddc3305c5f805edd6e8e1
This is a major change that replaces the GRUB bootloader with ZFSBootMenu,
providing native ZFS boot environment support.
Key changes:
- EFI partition reduced from 1GB to 512MB (only holds ZFSBootMenu)
- EFI now mounts at /efi instead of /boot
- Kernel and initramfs live on ZFS root (enables snapshot boot with matching kernel)
- Downloads pre-built ZFSBootMenu EFI binary from get.zfsbootmenu.org
- Creates EFI boot entries for all disks in multi-disk configurations
- Syncs ZFSBootMenu to all EFI partitions for redundancy
- Sets org.zfsbootmenu:commandline on zroot/ROOT for kernel cmdline inheritance
- Sets bootfs pool property for default boot environment
- AMD GPU workarounds (pg_mask, cwsr_enable) added to kernel cmdline when AMD detected
Deleted GRUB snapshot tooling (no longer needed):
- custom/grub-zfs-snap
- custom/40_zfs_snapshots
- custom/zz-grub-zfs-snap.hook
- custom/zfs-snap-prune
Updated helper scripts:
- zfssnapshot: removed grub-zfs-snap call, shows ZFSBootMenu tip
- zfsrollback: removed grub-zfs-snap call, notes auto-detection
Tested configurations:
- Single disk installation
- 2-disk mirror (mirror-0)
- 3-disk RAIDZ1 (raidz1-0)
- All boot correctly with ZFSBootMenu
Fix zfsrollback to process children before parents2026-01-19T15:49:38+00:00Craig Jenningsc@cjennings.net2026-01-19T15:49:38+00:00urn:sha1:dba73f8f9749b0efd78c1d406ac20e58930a8021
Sort datasets by path depth (deepest first) before rolling back.
ZFS requires children to be rolled back before their parents,
otherwise rollback can fail or skip datasets.
Increase fzf height in zfsrollback to 70%2026-01-19T14:51:16+00:00Craig Jenningsc@cjennings.net2026-01-19T14:51:16+00:00urn:sha1:a8c865a6712304d4921b6394e3cc5b0ed601fbbc
40% was too small on console, showing only ~2 lines.
70% gives roughly 2/3 of screen for snapshot selection.
Add zfssnapshot and zfsrollback scripts to ISO2026-01-19T14:39:28+00:00Craig Jenningsc@cjennings.net2026-01-19T14:39:28+00:00urn:sha1:da3e568d6554458e03cb3d9eee5a820b7e970bab
Copied from archsetup to make these tools available on the live ISO
for rescue scenarios and post-install management.
zfssnapshot:
- Creates recursive snapshots across all pools
- Timestamps with descriptive labels (YYYY-MM-DD_HH-MM-SS_description)
- Integrates with grub-zfs-snap for boot menu updates
zfsrollback:
- Interactive fzf-based snapshot selection
- Two modes: single dataset or all matching datasets
- Safety warnings showing what will be destroyed
- Special genesis rollback warning