Arch Linux installer ISO — ZFS-on-root or BTRFS, doubles as rescue disk https://git.cjennings.net/archangel/atom?h=v0.8 2026-01-23T05:21:18+00:00 2026-01-23T05:21:18+00:00 Craig Jennings c@cjennings.net 2026-01-23T05:21:18+00:00 urn: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 2026-01-22T21:45:48+00:00 Craig Jennings c@cjennings.net 2026-01-22T21:45:07+00:00 urn:sha1:197a8036af21232276cfbd9624d9eeeebe722df6 - Add instructions for applying pg_mask=0 and cwsr_enable=0 workarounds - Document that kernel 6.18.x has critical bugs, stay on 6.15.x-6.17.x - Add session docs, mkinitcpio fixes, and Donato Capitella video transcript - Add PRINCIPLES.org for behavioral lessons learned - Update protocols.org from template