Kernel Update Procedure - pop-os/linux GitHub Wiki

In this case, 5.18.6 is used as the newest mainline. Replace with your desired kernel version.

• Choose a kernel from Kernels are pulled from https://kernel.ubuntu.com/~kernel-ppa/mainline/?C=M;O=D
• At the link (https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.18.6/ for example), find the git source line. It is git://git.launchpad.net/~ubuntu-kernel-test/ubuntu/+source/linux/+git/mainline-crack cod/mainline/v5.18.6 for this example
• Checkout the closest version of https://github.com/pop-os/linux, in this case, the linux-5.18.5 branch from https://github.com/pop-os/linux/pull/157
• Create a new branch for the new version git checkout -b linux-5.18.6
• Fetch the Ubuntu mainline packaging git fetch git://git.launchpad.net/~ubuntu-kernel-test/ubuntu/+source/linux/+git/mainline-crack cod/mainline/v5.18.6
• Rebase on it, dropping any commits before System76 Linux and any that start with DROP ON REBASE. When switching major versions be careful to only bring in commits from us.
• Run ./system76.sh - this will create the debian changelog
• Push with git push -u origin linux-5.18.6 and create the PR, for example: https://github.com/pop-os/linux/pull/159