258b935d70
this lets us *dis*able filesystem explicitly, as is required by e.g. the zfs-less installer images. currently that specifically is only easily possible by adding an overlay that stubs out `zfs`, with the obvious side-effect of also removing tooling that could run without the kernel module loaded.
34 lines
1006 B
Nix
34 lines
1006 B
Nix
{ config, lib, pkgs, ... }:
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let
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hasExtX = s: s.ext2 or s.ext3 or s.ext4 or false;
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inInitrd = hasExtX config.boot.initrd.supportedFilesystems;
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inSystem = hasExtX config.boot.supportedFilesystems;
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in
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{
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config = {
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system.fsPackages = lib.mkIf (config.boot.initrd.systemd.enable -> (inInitrd || inSystem)) [ pkgs.e2fsprogs ];
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# As of kernel 4.3, there is no separate ext3 driver (they're also handled by ext4.ko)
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boot.initrd.availableKernelModules = lib.mkIf (config.boot.initrd.systemd.enable -> inInitrd) [ "ext2" "ext4" ];
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boot.initrd.extraUtilsCommands = lib.mkIf (!config.boot.initrd.systemd.enable)
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''
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# Copy e2fsck and friends.
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copy_bin_and_libs ${pkgs.e2fsprogs}/sbin/e2fsck
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copy_bin_and_libs ${pkgs.e2fsprogs}/sbin/tune2fs
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ln -sv e2fsck $out/bin/fsck.ext2
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ln -sv e2fsck $out/bin/fsck.ext3
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ln -sv e2fsck $out/bin/fsck.ext4
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'';
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boot.initrd.systemd.initrdBin = lib.mkIf inInitrd [ pkgs.e2fsprogs ];
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};
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}
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