The working tree had accumulated git-tracking drift across the
local/sources, local/recipes/*/source, and local/reference trees.
Restored:
- local/sources/libredox: add missing 160000 gitlink at
d01da350 (submodule/libredox). The .gitmodules entry already
declared this fork; the parent tree entry was missing so a
fresh clone of the parent would not pull the libredox source.
- .gitignore: mark the four local/recipes/*/source build-cache
trees (uutils-tar, ninja-build, sddm, sddm/source-pristine)
and the two local/reference/* entries (linux-7.1, seL4) as
ignored. These are build caches and external references, not
durable Red Bear code. The durable code for the four recipes
is recipe.toml + the corresponding patch (redox.patch).
- Note in .gitignore: do not extend local/recipes/**/source to
a blanket rule, because ~150 Red Bear fork recipes do keep
their durable source under local/recipes/<name>/source/.
Removed six broken 160000 gitlinks:
- local/recipes/archives/uutils-tar/source (e4c2affa...): on-disk
working tree was a self-clone of RedBear-OS; gitlink pointed to
a non-existent commit in the parent object database.
- local/recipes/dev/ninja-build/source (d829f42b...): gitlink
was a dangling commit on a diverged branch that has since been
rewritten; the on-disk HEAD is upstream v1.13.1 (79feac0) which
the recipe re-fetches via recipe.toml anyway. The 6.4MB
embedded .git directory was also removed.
- local/recipes/kde/sddm/source (63780fcd...): build cache for
sddm 0.21.0 re-fetched via recipe.toml. The 11MB embedded
.git directory was also removed.
- local/recipes/kde/sddm/source-pristine (63780fcd...): empty
placeholder, build cache. Removed.
- local/reference/linux-7.1 (ab9de95c...): external Linux
reference tree, gitignored by size. The on-disk directory
is preserved per AGENTS.md 'NEVER delete the reference tree'.
- local/reference/seL4 (a0b4f2d2...): empty placeholder,
gitignored.
Removed untracked pollution at repo root:
- kernel (empty 0-byte file)
- qqmljsgrammar.cpp, qqmljsgrammar_p.h, qqmljsparser.cpp,
qqmljsparser_p.h (393KB total: build artifacts that escaped
a qtdeclarative build into the working tree root; they belong
inside the recipe source tree, not at the parent level)
Added:
- local/docs/MULTITHREADING-COMPREHENSIVE-ASSESSMENT-AND-PLAN.md:
comprehensive multi-threading audit and implementation plan
covering kernel scheduler, kernel futex, syscall ABI, relibc
pthreads, and userspace threading correctness. Will drive
the next implementation cycle after the git tracking work
is wrapped.
After this commit:
- 9 submodule entries in HEAD, all of local/sources/* forks.
- All previously-existing 8 fork submodules unchanged.
- libredox is now durable across clones (was previously lost).
- No untracked files at root.
- No dangling or self-referencing gitlinks.
Red Bear OS
A microkernel operating system written in Rust, derived from Redox OS
What is Red Bear OS?
Red Bear OS is a general-purpose, Unix-like operating system with a microkernel architecture, written in Rust. It is a full fork of Redox OS, frozen at release 0.1.0, with added hardware support, filesystem drivers, and a KDE Plasma desktop path.
Goals:
- AMD & Intel parity — first-class support for both platforms on bare metal
- KDE Plasma desktop — Wayland-based desktop environment via the KWin compositor
- Hardware GPU acceleration — AMD GPU (amdgpu) and Intel GPU drivers via
redox-drm - Modern subsystems — USB, Wi‑Fi, Bluetooth, ext4, GRUB, D-Bus
- Offline-first builds — reproducible from archived, BLAKE3-verified sources
Our Git Server
Red Bear OS lives on a self-hosted Gitea instance at https://gitea.redbearos.org. This is the canonical home for the fork — there is no GitHub / GitLab / Codeberg mirror that is authoritative.
| Field | Value |
|---|---|
| Host | https://gitea.redbearos.org |
| User | vasilito |
| Token | (session-only — never stored in repo) |
| Web UI | https://gitea.redbearos.org/vasilito |
| Main repo | https://gitea.redbearos.org/vasilito/RedBear-OS |
Token policy. The
vasilitotoken is a per-session credential and must never be committed to any tracked file. Usegit credential.helper(store / cache / libsecret),~/.netrc, or$REDBEAR_GITEA_TOKENenv var. Seelocal/AGENTS.md§ Our Git Server for the full operator runbook, mirror list, API reference, and recovery procedure.
Quick Start
Prerequisites
Linux x86_64 host with Rust nightly, QEMU, nasm, and standard build tools.
See the Redox Build Guide for full setup.
Build & Run
# Clone (read-only)
git clone https://gitea.redbearos.org/vasilito/RedBear-OS.git
cd RedBear-OS
# Authenticated clone (one-off) — supply token via env var, not literal here
git clone https://vasilito:${REDBEAR_GITEA_TOKEN}@gitea.redbearos.org/vasilito/RedBear-OS.git
# Recommended: use the Red Bear wrapper
./local/scripts/build-redbear.sh redbear-mini # Text-only target
./local/scripts/build-redbear.sh redbear-full # Desktop-capable target
# Boot in QEMU with the resulting image
make qemu
Build script:
local/scripts/build-redbear.shis the canonical entry point. Baremake allworks but bypasses the.configchecking andREDBEAR_ALLOW_PROTECTED_FETCH=1gates thatbuild-redbear.shenforces. SeeAGENTS.md§ Build Commands for full details.
Public Scripts
| Script | Purpose |
|---|---|
local/scripts/build-redbear.sh |
Canonical build wrapper for redbear-mini/full/grub |
scripts/run.sh |
Build and run in QEMU (-b to build, -c <config> for target) |
scripts/build-iso.sh |
Build a live ISO for bare-metal boot |
scripts/build-all-isos.sh |
Build all live ISO targets |
scripts/network-boot.sh |
PXE network boot helper |
scripts/dual-boot.sh |
Dual-boot installation helper |
Config Targets
| Target | Type | Description |
|---|---|---|
redbear-full |
Desktop | Wayland + KDE + GPU drivers + D-Bus services |
redbear-mini |
Console | Text-only recovery / install target |
redbear-grub |
Console | Text-only with GRUB boot manager |
Current Status
Red Bear OS boots to a login prompt in QEMU with working wired networking, D-Bus system bus, hardware detection daemons, and filesystem support (RedoxFS, ext4, FAT).
| Area | Status |
|---|---|
| Boot (ACPI/x2APIC/SMP) | ✅ Bare-metal proven |
| Userspace drivers (PCI, storage, net) | ✅ Working in QEMU |
| D-Bus system bus + services | ✅ Working (login1, PolicyKit, UDisks, UPower) |
| ext4 / FAT filesystems | ✅ Compiles, installer-wired |
| POSIX gaps (relibc) | 🚧 Bounded Wayland-facing support |
| DRM/KMS display drivers | 🚧 AMD + Intel compile; HW validation pending |
| Wayland compositor | 🚧 Bounded proof; Qt6/KF6 clients crash at init |
| KDE Plasma desktop | 🔄 In progress (Qt6/KF6 compile; KWin/QML blocked) |
| Wi‑Fi / Bluetooth | 📋 Planned (architected, implementation pending) |
How It Works
Red Bear OS uses a userspace driver model — all drivers run as unprivileged daemons:
Kernel (microkernel)
└── schemes: memory, irq, event, pipe, debug
└── Driver daemons (userspace)
├── pcid → PCI enumeration
├── e1000d → Intel ethernet
├── xhcid → USB controller
└── vesad → Display framebuffer
The kernel provides minimal services (memory, interrupts, IPC). Everything else — filesystems, networking, graphics, input — runs in userspace.
Documentation
- Implementation Plan — roadmap and execution model
- Desktop Path Plan — kernel → DRM → Mesa → Wayland → KDE
- D-Bus Integration — session bus architecture
- USB Plan — USB stack design
- Wi‑Fi Plan — wireless architecture
- Bluetooth Plan — BT stack design
- Documentation Index — full doc map
Contributing
Red Bear OS uses a full fork model. Upstream Redox sources are frozen and archived. All custom work lives in local/:
local/
├── patches/ # Durable changes to upstream source trees
├── recipes/ # Custom packages (drivers, GPU, system)
├── docs/ # Integration and planning docs
└── scripts/ # Build, test, and release tooling
We welcome contributions made with or without AI assistance — we care about quality, not how the code was produced.
License
MIT — same as upstream Redox OS.