Apply the full Red Bear bootloader patch set:
- P0-gpt-partition-offset
- fix-uefi-alloc-panic
- redox.patch (Makefile/mk and misc fixes)
- P1-bootloader-timeout-and-default-resolution
- P2-live-preload-guard
- P3-uefi-live-image-safe-read
- P4-live-large-iso-boot
- P5-live-preload-cap-1gib
Also switch redoxfs dependency to the local fork path.
Rust nightly requires -Zunstable-options for custom target JSON specs
(such as x86-unknown-none.json). Without it, the build fails with:
error: error loading target specification: custom targets are
unstable and require `-Zunstable-options`
UEFI already uses the built-in x86_64-unknown-uefi target, so it
didn't need this flag. The kernel recipe already has this fix; the
bootloader BIOS Makefile was missing it.
vasilito
Red Bear OS