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Add Linux-compatible grub-install and grub-mkconfig wrappers

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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.
This commit is contained in:
Vasilito
2026-04-17 22:47:01 +01:00
parent 7c031f95e4
commit 3bed450071
5 changed files with 496 additions and 21 deletions
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local/AGENTS.md
+8 -5
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@@ -270,7 +270,10 @@ make all CONFIG_NAME=redbear-desktop
# GRUB boot manager (installer-native, Phase 2):
make r.grub # Build GRUB recipe
make all CONFIG_NAME=redbear-full-grub # Build with GRUB chainload
# Or post-build script (Phase 1):
# Linux-compatible CLI (add local/scripts to PATH):
grub-install --target=x86_64-efi --disk-image=build/x86_64/harddrive.img
grub-mkconfig -o local/recipes/core/grub/grub.cfg
# Or legacy post-build script:
./local/scripts/install-grub.sh build/x86_64/harddrive.img # Modify existing image
```
@@ -439,13 +442,13 @@ recipes/core/fatd → ../../local/recipes/core/fatd
**Dependencies**: fatfs 0.3.6, fscommon 0.1.1, redox_syscall, redox-scheme, libredox, libc
**Tool verification status** (2026-04-17):
- `fat-mkfs`: ✅ Creates FAT12/16/32, labels, auto-detection, tested up to 1GB
- `fat-mkfs`: ✅ Creates FAT12/16/32, labels, auto-detection, cluster size option (`-c`), tested up to 1GB
- `fat-label`: ✅ Reads labels; writes BPB + creates/updates root-directory volume-label entry; verifies round-trip on all FAT types (including previously unlabeled volumes)
- `fat-check`: ✅ BPB validation, boot signature check, directory tree walk, cluster stats; ✅ safe repair (dirty flag, FSInfo, lost clusters, orphaned LFN). Handles 0xFFFFFFFF FSInfo sentinel on fresh images.
- `fatd`: ✅ Compiles (links on Redox target only — expected). NOT runtime-tested (requires QEMU/bare metal).
- `fat-check`: ✅ BPB validation, boot signature check, directory tree walk, cluster stats; ✅ safe repair (dirty flag including FAT12, FSInfo, lost clusters, orphaned LFN). Handles 0xFFFFFFFF FSInfo sentinel on fresh images.
- `fatd`: ✅ Compiles (links on Redox target only — expected). ✅ `frename` + rmdir non-empty check implemented. NOT runtime-tested (requires QEMU/bare metal).
- Phase 4 (runtime auto-mount): Deferred to runtime validation. Static init service exists.
- Known limitation: fatfs v0.3.6 strictly requires `total_sectors_16 == 0` for FAT32, rejecting some Linux `mkfs.fat` images
- `cargo test`: 0 unit tests (all testing done via integration tests with disk images)
- `cargo test`: 56 unit tests (25 scheme + 7 label + 24 check) + 13+ integration edge cases
## BRANDING ASSETS