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osboot repositories

Information about who works on osboot and who runs the project can be found on who.html

The osboot project has 3 main Git repositories:

There is also these programs, hosted by the Libreboot project, and osboot either recommends them or makes use of them:

You can download any of these repositories, make whatever changes you like, and then submit your changes using the instructions below.

It is recommended that you build osboot (all parts of it) in a GNU+Linux distribution. For example, the build system (osbmk) is untested on BSD systems. Install git in your GNU+Linux system, and download one of the repositories.

Development of osboot is done using the Git version control system. Refer to the official Git documentation if you don’t know how to use Git.

The bucts repository is hosted by the osboot project, because the original repository on is no longer available, last time we checked. The bucts program was written by Peter Stuge. You need bucts if you’re flashing internally an osboot ROM onto a ThinkPad X60 or T60 that is currently running the non-free Lenovo BIOS. Instructions for that are available here:
osboot installation guides

The ich9utils repository is used heavily, by the osbmk build system. However, you can also download ich9utils on its own and use it. It generates ICH9M descriptor+GbE images for GM45 ThinkPads that use the ICH9M southbridge. It may also work for other systems using the same platform/chipset. Documentation for ich9utils is available here:
ich9utils documentation

osbmk (osboot-make)

This is the core build system in osboot. You could say that osbmk is osboot! Download the Git repository:

git clone

The git command, seen above, will download the osboot build system osbmk. You can then go into it like so:

cd osbmk

Make whatever changes you like, or simply build it. For instructions on how to build osbmk, refer to the build instructions.

Information about the build system itself, and how it works, is available in the osbmk maintenance guide.

osbwww and osbwww-img

The entire osboot website and documentation is hosted in a Git repository. Download it like so:

git clone

Images are hosted on and available in a separate repository:

git clone

Make whatever changes you like. See notes below about how to send patches.

The entire website is written in Markdown, specifically the Pandoc version of it. The static HTML pages are generated with Untitled. Leah Rowe, the founder of osboot, is also the founder of the Untitled static site generator project.

If you like, you can set up a local HTTP server and build your own local version of the website. Please note that images will still link to the ones hosted on, so any images that you add to osbwww-img will not show up on your local lbwww site if you make the image links (for images that you add) link to However, it is required that such images be hosted on

Therefore, if you wish to add images to the website, please also submit to the lbwww-img repository, with the links to them being for each one. When it is merged on the osboot website, your images will appear live.

For development purposes, you might make your images local links first, and then adjust the URLs when you submit your documentation/website patches.

Instructions are on the Untitled website, for how to set up your local version of the website. Download untitled, and inside your untitled directory, create a directory named www/ then go inside the www directory, and clone the lbwww repository there. Configure your local HTTP server accordingly.

Again, instructions are available on the Untitled website for this purpose.

Name not required

Contributions that you make are publicly recorded, in a Git repository which everyone can access. This includes the name and email address of the contributor.

In Git, for author name and email address, you do not have to use identifying data. You can use osboot Contributor and your email address could be specified as You are permitted to do this, if you wish to maintain privacy. We believe in privacy. If you choose to remain anonymous, we will honour this.

Of course, you can use whichever name and/or email address you like.

Legally speaking, all copyright is automatic under the Berne Convention of international copyright law. It does not matter which name, or indeed whether you even declare a copyright (but we do require that certain copyright licenses are used - read more about that on this same page).

If you use a different name and email address on your commits/patches, then you should be fairly anonymous. Use git log and git show to confirm that before you push changes to a public Git repository.


We require all patches to be submitted under a free license:

Always declare a license on your work! Not declaring a license means that the default, restrictive copyright laws apply, which would make your work non-free.

GNU+Linux is generally recommended as the OS of choice, for osboot development. However, BSD operating systems also boot on osboot machines.

Send patches

Make an account on and navigate (while logged in) to the repository that you wish to work on. Click Fork and in your account, you will have your own repository of osboot. Clone your repository, make whatever changes you like to it and then push to your repository, in your account on NotABug. You can also do this on a new branch, if you wish.

In your Notabug account, you can then navigate to the official osboot repository and submit a Pull Request. The way it works is similar to other popular web-based Git platforms that people use these days.

You can submit your patches there. Alternative, you can log onto the osboot IRC channel and notify the channel of which patches you want reviewed, if you have your own Git repository with the patches.

Once you have issued a Pull Request, the osboot maintainers will be notified via email. If you do not receive a fast enough response from the project, then you could also notify the project via the #osboot channel on Libera Chat.

Another way to submit patches is to email Leah Rowe directly: is Leah’s project email address.

However, for transparency of the code review process, it’s recommended that you use Notabug, for the time being.

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Site map

This HTML page was generated by the untitled static site generator.