canoeboot build system.
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Leah Rowe 849466c0ac allow patching submodules
for single-tree project (e.g. flashprog):

for multi-tree project (e.g. coreboot):

MODNAME is e.g.:
3rdparty/vboot directory in coreboot: would become vboot
(the submodule codepath is filtered to up to the final slash)

another example:
submodire src dir 3rdparty/foo/bar
MODNAME would be "bar"

Add whatever patches you like to a given submodule.

An example patch is included in this commit.

Signed-off-by: Leah Rowe <>
2024-05-20 00:28:46 +01:00
config allow patching submodules 2024-05-20 00:28:46 +01:00
include allow patching submodules 2024-05-20 00:28:46 +01:00
script build/roms: skip target if config/ dir missing 2024-05-20 00:27:51 +01:00
util dell-flash-unlock: Remove dependency on GNU Make 2024-05-03 01:47:38 +01:00
.gitignore Canoeboot 20231107 release 2023-11-07 17:19:04 +00:00
COPYING censored libreboot c20230710 2023-10-26 20:20:43 +01:00 further modify the README (stragglers) 2024-05-10 05:35:25 +01:00
build more minor cleanup in the build system 2024-05-19 08:18:24 +01:00
projectname Canoeboot 20231026 release 2023-10-27 08:21:04 +01:00
update Canoeboot 20231026 release 2023-10-27 08:21:04 +01:00


Find canoeboot documentation at

The canoeboot project provides libre boot firmware that initializes the hardware (e.g. memory controller, CPU, peripherals) on specific Intel/AMD x86 and ARM targets, which then starts a bootloader for your operating system. Linux/BSD are well-supported. It replaces proprietary BIOS/UEFI firmware. Help is available via #canoeboot IRC on Libera IRC.

Canoeboot is maintained in parallel with Libreboot, by the same developer. Strictly speaking, it is a fork of Libreboot, but with a twist:

Canoeboot is provided for the purists who absolutely wish to have no proprietary software of any kind. Regardless of any other firmware that exists outside of it, the boot flash on your system will be entirely free software if you install Canoeboot on it. That includes a complete lack of CPU microcode updates, as per FSF policy.

More specifically: Canoeboot is engineered to comply with the GNU Free System Distribution Guidelines. It has, as of November 2023 releases, been strictly audited by FSF licensing staff (Craig Topham lead the audit), and it is listed on the FSF's own Free Software Directory.

Libreboot previously complied with that same policy, but changed to a different one permitting binary blobs in limited circumstances, so as to support more newer machines. Canoeboot is, then, a continuation of the traditional Libreboot project prior to that policy change. Some users still want it, so, Canoeboot releases are rigoriously maintained, re-basing on newer Libreboot releases over time, just like how, say, Trisquel, re-bases itself on each new Ubuntu release.

Project goals

  • Obviously, support as much hardware as possible (within the limitations imposed by GNU FSDG, and using what coreboot happens to have in its source tree - Canoeboot also heavily patches coreboot, sometimes adding new mainboards out-of-tree).
  • Make coreboot easy to use. Coreboot is notoriously difficult to install, due to an overall lack of user-focused documentation and support. Most people will simply give up before attempting to install coreboot. Canoeboot's automated build system and user-friendly installation instructions solves this problem.

Canoeboot attempts to bridge this divide by providing a build system automating much of the coreboot image creation and customization. Secondly, the project produces documentation aimed at non-technical users. Thirdly, the project attempts to provide excellent user support via IRC.

Canoeboot already comes with a payload (GRUB), flashprog and other needed parts. Everything is fully integrated, in a way where most of the complicated steps that are otherwise required, are instead done for the user in advance.

You can download ROM images for your canoeboot system and install them without having to build anything from source. If, however, you are interested in building your own image, the build system makes it relatively easy to do so.

Not a coreboot fork!

Canoeboot is not a fork of coreboot. Every so often, the project re-bases on the latest version of coreboot, by virtue of maintaining sync with Libreboot releases (minus un-GNU parts), with the number of custom patches in use minimized. Tested, stable (static) releases are then provided in Canoeboot, based on specific coreboot revisions.


It's just a README file. This README file is released under the terms of the Creative Commons Zero license, version 1.0 of the license, which you can read here:

The documentation in Canoeboot will use a mix of other licenses, so you should check that for more information.