5-crate Rust workspace implementing full VFAT support: fatd scheme daemon
(FSScheme with open/read/write/mkdir/unlink/rename/fstat), fat-mkfs (create
FAT12/16/32 with labels and cluster size), fat-label (read/write BPB + root-dir
volume labels), fat-check (verify + repair dirty flags, FSInfo, lost clusters,
orphaned LFN). 60 unit tests, 0 unwrap in production code. Included in all 5
redbear configs via redbear-device-services.toml.
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
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
Add || exit 1 to all critical build steps (mkdir, cd, touch, configure,
make, grub-mkimage) so failures surface immediately instead of silently
continuing. Verify gcc/make/bison/flex are present before starting the
build. Update grub.cfg help text to reference fat_tool.py instead of
unavailable mtools.
install-grub.sh now searches both recipes/core/bootloader/target and
local/recipes/core/bootloader/target for the Redox bootloader artifact.
The WIP grub recipe (recipes/wip/services/grub) is now a full directory
symlink to local/recipes/core/grub instead of just recipe.toml, ensuring
COOKBOOK_RECIPE resolves to a directory that contains grub.cfg. This also
eliminates the duplicate recipe warning from the cookbook.
The GRUB recipe now fails hard (exit 1) if grub.cfg is missing instead of
just warning.
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
Builds GRUB 2.12 for the host machine (not Redox target) using template=custom.
Produces a 540 KiB standalone PE32+ EFI binary with GPT, FAT, ext2,
chainloader, and utility modules. The grub.cfg chainloads the Redox
bootloader from EFI/REDBEAR/redbear.efi.
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
Derivative of Redox OS (https://www.redox-os.org) adding:
- AMD GPU driver (amdgpu) via LinuxKPI compat layer
- ext4 filesystem support (ext4d scheme daemon)
- ACPI fixes for AMD bare metal (x2APIC, DMAR, IVRS, MCFG)
- Custom branding (hostname, os-release, boot identity)
Build system is full upstream Redox with RBOS overlay in local/.
Patches for kernel, base, and relibc are symlinked from local/patches/
and protected from make clean/distclean. Custom recipes live in
local/recipes/ with symlinks into the recipes/ search path.
Build: make all CONFIG_NAME=redbear-full
Sync: ./local/scripts/sync-upstream.sh
vasilito