Bootable Debian 12 Bookworm image for the Doogee U10 (RK3562) runs from SD card with no bootloader unlock or internal storage changes.
Key Takeaways
rk3562deb is a full build system producing a flashable SD card image: U-Boot, kernel, and Debian 12 rootfs all built from a single ./build.sh all command.
Nearly all hardware works: display, touchscreen, Wi-Fi, Bluetooth, audio, USB OTG, battery; cameras are partial pending ISP color calibration.
The RK3562 NPU is active via Rockchip RKLLM; Qwen3-0.6B W8A8 generates ~4.9 tok/s, Qwen2.5-1.5B ~2.2 tok/s on one NPU core.
Entire port was reverse-engineered from scratch using Firefly open-source repos as a base, with no vendor BSP or documentation.
Build is configurable via env vars and CLI flags: GPU stack (mali/Panfrost), CPU governor, rootfs size, minimize mode for smaller images.
Hacker News Comment Review
Commenters agree 4 GB RAM is workable for real tasks; Firefox with uBlock is the recommended browser since Chromium-based options consume too much memory under pressure.
AI-assisted reverse engineering is the standout meta-point: multiple commenters note that LLM tooling (Claude, Codex, Gemini used here) dramatically lowers the effort threshold for porting Linux to undocumented hardware.
Hardware availability is a practical concern: the Doogee U10 is not widely stocked, though one commenter confirmed it is available via a third-party Best Buy listing with ~10-day delivery.
Notable Comments
@squarefoot: describes independently using Claude to port Linux to an undocumented board from binary-only Android images, imagining a dedicated AI-assisted reverse-engineering platform with serial console integration.
