vasilito
50b731f1b7
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
Red Bear OS
Microkernel operating system in Rust — based on Redox OS
Red Bear OS is a derivative of Redox OS — a general-purpose, Unix-like, microkernel-based operating system written in Rust. It tracks upstream Redox, incorporating its improvements while adding custom drivers, filesystems, and hardware support.
What's Different from Upstream Redox
| Component | Status | Detail |
|---|---|---|
| AMD GPU driver (amdgpu) | 🚧 In progress | LinuxKPI compat layer + AMD DC modesetting |
| ext4 filesystem | ✅ Compiles | Read/write ext4 alongside RedoxFS |
| ACPI for AMD bare metal | ⚠️ Partial | x2APIC, DMAR, IVRS, MCFG parsing |
| Custom branding | ✅ | Boot identity, hostname, os-release |
| POSIX gaps (relibc) | 🚧 In progress | eventfd, signalfd, timerfd, open_memstream |
Project Structure
├── config/ # Build configs (TOML) — desktop, minimal, redbear-*
├── recipes/ # Package recipes (~100+ packages, 26 categories)
├── mk/ # Makefile build orchestration
├── src/ # Cookbook Rust tool (repo binary, cook logic)
├── local/ # ← Red Bear OS custom work (survives upstream updates)
│ ├── patches/ # Kernel, base, relibc patches
│ ├── recipes/ # Custom packages (drivers, GPU, system, branding)
│ ├── scripts/ # sync-upstream.sh, apply-patches.sh
│ ├── Assets/ # Branding (icon, boot background)
│ └── docs/ # Integration documentation
├── docs/ # Architecture guides
├── scripts/ # Helper scripts
└── Makefile # Root build orchestrator
Build
Requires a Linux x86_64 host with Rust nightly, QEMU, and standard build tools. See the Redox Build Instructions for full prerequisites.
make all CONFIG_NAME=redbear-full # Full desktop + custom drivers
make all CONFIG_NAME=redbear-minimal # Minimal server
make live CONFIG_NAME=redbear-full # Live ISO (rbos-live.iso)
make qemu # Boot in QEMU
Sync with Upstream Redox
./local/scripts/sync-upstream.sh # Rebase onto latest Redox
./local/scripts/sync-upstream.sh --dry-run # Preview conflicts first
The local/ directory is never touched by upstream updates. Recipe patches for kernel and base are symlinked from local/patches/ — protected from make clean and make distclean.
Resources
License
MIT — same as upstream Redox OS.