021e7615c8
We used cbfstool from coreboot 4.13, because it was the last version to work with the particular format used for stage files, before the CBFS standard changed in newer releases of cbfstool. When I added this board to Libreboot, it was source-only at first so it didn't matter. I didn't want to do a standalone cbfstool binary, in case some people decided to use that one on newer boards, which would cause all sorts of issues. So I bodged it and just included an import of coreboot 4.13. Well, the cbfstool from coreboot 4.11, as used for FAM15H AMD boards, is compatible. I checked the code diff between the two, and there is no meaningful difference. I've tested this, and it works, since the last release or two now includes 820 G2 images, so I was able to use those with ./mk inject, to verify whether the refcode file is still grabbed properly. We need the refcode to handle MRC on Broadwell platform, but we extract it from an old Google Chromebook image, that uses the old CBFS stage file layout. This change solves my problem: the problem was that releases are bloated further, due to including this extra coreboot version. This should reduce the size of the next release considerably, especially after decompressing the tarball. Signed-off-by: Leah Rowe <leah@libreboot.org>
Libreboot
Documentation: libreboot.org
Support: #libreboot on
Libera IRC
Libreboot provides libre boot firmware on supported motherboards. It replaces proprietary vendor BIOS/UEFI implementations, by
- Using coreboot to initialize the hardware (e.g. memory controller, CPU, etc.) while minimizing unwanted functionality (e.g. backdoors such as the Intel Management Engine)
- ... which runs a payload such as SeaBIOS, GRUB, or U-Boot
- ... which loads your operating system's boot loader (BSD and Linux-based systems are supported).
Why use Libreboot, and what is coreboot?
A lot of users who use libre operating systems still use proprietary boot firmware, which often contain backdoors and bugs, hampering user freedom and right to repair.
coreboot provides libre boot firmware by initializing the hardware then running a payload. However, coreboot is notoriously difficult to configure and install for most non-technical users, requiring detailed technical knowledge of hardware.
Libreboot solves this by being a coreboot distribution (in the same way that Alpine Linux is a Linux distribution). It provides a fully automated build system that downloads and compiles pre-configured ROM images for supported motherboards, so end-users could easily fetch images to flash onto their devices.
Libreboot also produces documentation aimed at non-technical users and excellent user support via IRC.
Contribute
You can check bugs listed on the bug tracker.
You may use Codeberg pull requests to send patches with bug fixes or other improvements. This repository hosts the code for the main build system. The website lives in a separate repository.
Development is also done on the IRC channel.
License for this README
It's just a README file. It is released under Creative Commons Zero, version 1.0.