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Diffstat (limited to 'nixos/doc/manual/from_md/configuration/linux-kernel.chapter.xml')
-rw-r--r-- | nixos/doc/manual/from_md/configuration/linux-kernel.chapter.xml | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/nixos/doc/manual/from_md/configuration/linux-kernel.chapter.xml b/nixos/doc/manual/from_md/configuration/linux-kernel.chapter.xml index a1d6815af29c1..dd570e1d66c27 100644 --- a/nixos/doc/manual/from_md/configuration/linux-kernel.chapter.xml +++ b/nixos/doc/manual/from_md/configuration/linux-kernel.chapter.xml @@ -22,6 +22,19 @@ boot.kernelPackages = pkgs.linuxKernel.packages.linux_3_10; date with new versions. </para> <para> + Please note that the current convention in NixOS is to only keep + actively maintained kernel versions on both unstable and the + currently supported stable release(s) of NixOS. This means that a + non-longterm kernel will be removed after it’s abandoned by the + kernel developers, even on stable NixOS versions. If you pin your + kernel onto a non-longterm version, expect your evaluation to fail + as soon as the version is out of maintenance. + </para> + <para> + Longterm versions of kernels will be removed before the next stable + NixOS that will exceed the maintenance period of the kernel version. + </para> + <para> The default Linux kernel configuration should be fine for most users. You can see the configuration of your current kernel with the following command: @@ -154,4 +167,38 @@ $ make -C $dev/lib/modules/*/build M=$(pwd)/drivers/net/ethernet/mellanox module # insmod ./drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.ko </programlisting> </section> + <section xml:id="sec-linux-zfs"> + <title>ZFS</title> + <para> + It’s a common issue that the latest stable version of ZFS doesn’t + support the latest available Linux kernel. It is recommended to + use the latest available LTS that’s compatible with ZFS. Usually + this is the default kernel provided by nixpkgs (i.e. + <literal>pkgs.linuxPackages</literal>). + </para> + <para> + Alternatively, it’s possible to pin the system to the latest + available kernel version <emphasis>that is supported by + ZFS</emphasis> like this: + </para> + <programlisting language="bash"> +{ + boot.kernelPackages = pkgs.zfs.latestCompatibleLinuxPackages; +} +</programlisting> + <para> + Please note that the version this attribute points to isn’t + monotonic because the latest kernel version only refers to kernel + versions supported by the Linux developers. In other words, the + latest kernel version that ZFS is compatible with may decrease + over time. + </para> + <para> + An example: the latest version ZFS is compatible with is 5.19 + which is a non-longterm version. When 5.19 is out of maintenance, + the latest supported kernel version is 5.15 because it’s longterm + and the versions 5.16, 5.17 and 5.18 are already out of + maintenance because they’re non-longterm. + </para> + </section> </chapter> |