47 lines
1.1 KiB
Nix
47 lines
1.1 KiB
Nix
{ config, pkgs, ... }:
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with pkgs.lib;
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let
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inInitrd = any (fs: fs == "btrfs") config.boot.initrd.supportedFilesystems;
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in
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{
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config = mkIf (any (fs: fs == "btrfs") config.boot.supportedFilesystems) {
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system.fsPackages = [ pkgs.btrfsProgs ];
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boot.initrd.kernelModules = mkIf inInitrd [ "btrfs" "crc32c" ];
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boot.initrd.extraUtilsCommands = mkIf inInitrd
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''
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mkdir -p $out/bin
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cp -v ${pkgs.btrfsProgs}/bin/btrfs $out/bin
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ln -sv btrfs $out/bin/btrfsck
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ln -sv btrfsck $out/bin/fsck.btrfs
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# !!! Increases uncompressed initrd by 240k
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cp -pv ${pkgs.zlib}/lib/libz.so* $out/lib
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cp -pv ${pkgs.lzo}/lib/liblzo2.so* $out/lib
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'';
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boot.initrd.extraUtilsCommandsTest = mkIf inInitrd
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''
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$out/bin/btrfs --version
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'';
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boot.initrd.postDeviceCommands = mkIf inInitrd
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''
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btrfs device scan
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'';
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# !!! This is broken. There should be a udev rule to do this when
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# new devices are discovered.
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jobs.udev.postStart =
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''
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${pkgs.btrfsProgs}/bin/btrfs device scan
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'';
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};
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}
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