nixpkgs/pkgs/os-specific/linux/kernel
Thiago Kenji Okada 6987e9935b
Merge pull request from JerrySM64/update-linux-zen
linuxKernel.kernels.linux_zen: 6.7-zen2 -> 6.7-zen3
2024-01-15 08:12:58 +00:00
..
hardened linux/hardened/patches/6.6: 6.6.10-hardened1 -> 6.6.11-hardened1 2024-01-13 11:10:59 +01:00
perf
bridge-stp-helper.patch
common-config.nix Merge pull request from ibbem/reenable-rfkill-input 2024-01-12 19:33:22 +01:00
export-rt-sched-migrate.patch
generate-config.pl
generic.nix
gpio-utils.nix
htmldocs.nix
kernels-org.json linux_5_10: 5.10.206 -> 5.10.207 2024-01-13 11:10:59 +01:00
linux-libre.nix linux_latest-libre: 19459 -> 19473 2024-01-09 13:42:19 +01:00
linux-rpi.nix
linux-rt-5.4.nix linux-rt_5_4: 5.4.257-rt87 -> 5.4.264-rt88 2024-01-05 21:23:34 +03:00
linux-rt-5.10.nix
linux-rt-5.15.nix linux-rt_5_15: 5.15.141-rt72 -> 5.15.145-rt73 2024-01-05 21:23:02 +03:00
linux-rt-6.1.nix linux-rt_6_1: 6.1.67-rt20 -> 6.1.70-rt21 2024-01-05 21:24:02 +03:00
mainline.nix
manual-config.nix
modinst-arg-list-too-long.patch
mptcp-config.nix
patches.nix
randstruct-provide-seed-5.19.patch
randstruct-provide-seed.patch
README.md doc: update the kernel config documentation to use nix-shell () 2024-01-08 12:10:41 +01:00
request-key-helper-updated.patch
request-key-helper.patch
rtl8761b-support.patch
update-libre.sh
update-mainline.py linux: ignore kernel branches older than min supported branch 2024-01-02 18:43:41 +01:00
update-rt.sh
update-zen.py
update.sh
xanmod-kernels.nix
zen-kernels.nix linuxKernel.kernels.linux_zen: 6.7-zen2 -> 6.7-zen3 2024-01-15 03:51:13 +01:00

How to add a new (major) version of the Linux kernel to Nixpkgs:

  1. Copy the old Nix expression (e.g., linux-2.6.21.nix) to the new one (e.g., linux-2.6.22.nix) and update it.

  2. Add the new kernel to the kernels attribute set in linux-kernels.nix (e.g., create an attribute kernel_2_6_22).

  3. Update the kernel configuration:

    1. While in the Nixpkgs repository, enter the development shell for that kernel:

      $ nix-shell -A linuxKernel.kernels.linux_2_6_22
      
    2. Unpack the kernel:

      [nix-shell]$ pushd $(mktemp -d)
      [nix-shell]$ unpackPhase
      
    3. For each supported platform (i686, x86_64, uml) do the following:

      1. Make a copy from the old config (e.g., config-2.6.21-i686-smp) to the new one (e.g., config-2.6.22-i686-smp).

      2. Copy the config file for this platform (e.g., config-2.6.22-i686-smp) to .config in the unpacked kernel source tree.

      3. Run make oldconfig ARCH={i386,x86_64,um} and answer all questions. (For the uml configuration, also add SHELL=bash.) Make sure to keep the configuration consistent between platforms (i.e., dont enable some feature on i686 and disable it on x86_64).

      4. If needed, you can also run make menuconfig:

        $ nix-shell -p ncurses pkg-config
        $ make menuconfig ARCH=arch
        
      5. Copy .config over the new config file (e.g., config-2.6.22-i686-smp).

  4. Test building the kernel:

nix-build -A linuxKernel.kernels.kernel_2_6_22

If it compiles, ship it! For extra credit, try booting NixOS with it.

  1. It may be that the new kernel requires updating the external kernel modules and kernel-dependent packages listed in the linuxPackagesFor function in linux-kernels.nix (such as the NVIDIA drivers, AUFS, etc.). If the updated packages arent backwards compatible with older kernels, you may need to keep the older versions around.