Create grub-install and grub-mkconfig scripts in local/scripts/ that
match GNU GRUB CLI conventions for users migrating from Linux. Support
standard switches: --target, --efi-directory, --bootloader-id,
--removable, -o/--output, --verbose, --help, --version. Unsupported
Linux options are accepted and ignored for script compatibility.
Also fix ESP FAT type: force FAT32 in both with_whole_disk and
with_whole_disk_ext4 (UEFI spec requires FAT32, fatfs auto-selects
FAT16 for partitions under 32 MiB). Fix --write-bootloader to export
GRUB EFI in GRUB mode. Fix CLI example in GRUB plan. Update AGENTS.md
and GRUB-INTEGRATION-PLAN.md with Linux-compatible CLI docs.
Add blake3 checksum for grub-2.12.tar.xz for recipe integrity
verification. Remove the chain module from grub-mkimage — the
chainloader command is built-in in GRUB 2.12, no separate module
needed. Image shrinks from 540 KiB to 512 KiB. Update module table
and size estimate in GRUB integration plan.
- Add grub package to redbear-full-grub.toml so make all works from
a clean tree (the installer needs grub.efi before it runs)
- Fix stat -f%z (macOS-only) to stat -c%s (Linux) in GRUB recipe
- Normalize bootloader config value to lowercase in install_inner so
bootloader = "GRUB" from config files is accepted
- Add bad-cluster marker (0x0FFFFFF7) check in fat_tool.py
_next_cluster to prevent potential infinite loops on degraded media
- Fix file handle leak in fat_tool.py if _read_bpb raises
- Clean up temp directory in fetch_bootloaders on error
- Update AGENTS.md with GRUB recipe and installer documentation
- Update GRUB plan with clean-build prerequisite note
INSTALLER_OPTS replaces the default --cookbook=. value, so the docs
now show the full invocation with --cookbook=. included and recommend
using the config file approach instead.
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
Reorganized testing section to cover both Phase 1 (post-build script)
and Phase 2 (installer-native) workflows. Added unit test commands.
Removed mtools dependency from limitations.
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
Documents the two-phase GRUB integration approach (post-build script
then installer-native), build notes for the three cookbook workarounds,
and measured artifact sizes. Sets efi_partition_size=16 in redbear-full
to accommodate GRUB plus Redox bootloader on the ESP.
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
vasilito