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improve selecting latest zfs kernel

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This commit is contained in:
Jörg Thalheim 2024-09-22 17:56:58 +02:00
parent 4e105478ce
commit 4de5aac8e9
2 changed files with 30 additions and 13 deletions
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17
nix/installer.nix
View file

@ -4,15 +4,11 @@
pkgs, pkgs,
... ...
}: }:
let
latestZfsCompatibleLinuxPackages = lib.pipe pkgs.linuxKernel.packages [
builtins.attrValues
(builtins.filter (kPkgs: (builtins.tryEval kPkgs).success && kPkgs ? kernel && kPkgs.kernel.pname == "linux" && !kPkgs.zfs.meta.broken))
(builtins.sort (a: b: (lib.versionOlder a.kernel.version b.kernel.version)))
lib.last
];
in
{ {
imports = [
./latest-zfs-kernel.nix
./nix-settings.nix
];
# more descriptive hostname than just "nixos" # more descriptive hostname than just "nixos"
networking.hostName = lib.mkDefault "nixos-installer"; networking.hostName = lib.mkDefault "nixos-installer";
@ -24,7 +20,6 @@ in
# use latest kernel we can support to get more hardware support # use latest kernel we can support to get more hardware support
boot.zfs.package = pkgs.zfsUnstable; boot.zfs.package = pkgs.zfsUnstable;
boot.kernelPackages = latestZfsCompatibleLinuxPackages;
documentation.enable = false; documentation.enable = false;
documentation.man.man-db.enable = false; documentation.man.man-db.enable = false;
@ -41,10 +36,6 @@ in
# alternative to nixos-generate-config # alternative to nixos-generate-config
] ++ lib.optional (pkgs.lib.versionAtLeast lib.version "24.11") pkgs.nixos-facter; ] ++ lib.optional (pkgs.lib.versionAtLeast lib.version "24.11") pkgs.nixos-facter;
imports = [
./nix-settings.nix
];
# Don't add nixpkgs to the image to save space, for our intended use case we don't need it # Don't add nixpkgs to the image to save space, for our intended use case we don't need it
system.installer.channel.enable = false; system.installer.channel.enable = false;
} }

26
nix/latest-zfs-kernel.nix Normal file
View file

@ -0,0 +1,26 @@
{
lib,
pkgs,
config,
...
}:
let
isUnstable = config.boot.zfs.package == pkgs.zfsUnstable;
zfsCompatibleKernelPackages = lib.filterAttrs (
name: kernelPackages:
(builtins.match "linux_[0-9]+_[0-9]+" name) != null
&& (builtins.tryEval kernelPackages).success
&& (
(!isUnstable && !kernelPackages.zfs.meta.broken)
|| (isUnstable && !kernelPackages.zfs_unstable.meta.broken)
)
) pkgs.linuxKernel.packages;
latestKernelPackage = lib.last (
lib.sort (a: b: (lib.versionOlder a.kernel.version b.kernel.version)) (builtins.attrValues zfsCompatibleKernelPackages)
);
in
{
# Note this might jump back and worth as kernel get added or removed.
boot.kernelPackages = latestKernelPackage;
}