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Add kernel ebuild update documentation

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projectmoon 2023-03-05 09:03:33 +00:00
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How to update the Linux-libre Kernel ebuild for a new version
---
1. Check for new stable version of `gentoo-kernel` on packages.gentoo.org.
2. If so, version bump `libre-kernel` ebuild to match new
`gentoo-kernel` version.
3. Check the `gentoo-kernel` ebuild for changes to the Gentoo config and
patches versions.
4. If the Gentoo patchset version has changed:
1. Update the patchset version in the `libre-kernel` ebuild.
2. Extract the patchset from the `gentoo-kernel` ebuild and see if
there are any new patches, or patches removed.
2. Most patches aside from the `1000`- series that patch the entire
kernel should work.
3. Add all new patches that apply to the patchset in the ebuild.
4. Make sure ebuild applies patches with `ebuild
libre-kernel-X.Y.Z.ebuild clean prepare`.
4. If the Gentoo config version has changed:
5. Update the config version in the `libre-kernel` ebuild.
6. Make sure ebuild applies config changes with `ebuild
libre-kernel-X.Y.Z.ebuild clean prepare`.
5. Attempt to build the kernel using `ebuild libre-kernel-X.Y.Z.ebuild
clean merge`. You might need to use `sudo` or `doas` for this.
If the build succeeds, the new ebuild can be pushed to the repository.