nixpkgs/nixos/modules/tasks/filesystems/unionfs-fuse.nix
Janne Heß 160fb93fdc
nixos/filesystems: Make most simple filesystems compatible with systemd
This includes disabling some features in the initrd by default, this is
only done when the new initrd is used. Namely, ext and bcache are
disabled by default. bcache gets an own enable option while ext is
detected like any other filesystem.
2022-04-24 16:32:34 +02:00

43 lines
1.8 KiB
Nix

{ config, pkgs, lib, ... }:
{
config = lib.mkMerge [
(lib.mkIf (lib.any (fs: fs == "unionfs-fuse") config.boot.initrd.supportedFilesystems) {
boot.initrd.kernelModules = [ "fuse" ];
boot.initrd.extraUtilsCommands = lib.mkIf (!config.boot.initrd.systemd.enable) ''
copy_bin_and_libs ${pkgs.fuse}/sbin/mount.fuse
copy_bin_and_libs ${pkgs.unionfs-fuse}/bin/unionfs
substitute ${pkgs.unionfs-fuse}/sbin/mount.unionfs-fuse $out/bin/mount.unionfs-fuse \
--replace '${pkgs.bash}/bin/bash' /bin/sh \
--replace '${pkgs.fuse}/sbin' /bin \
--replace '${pkgs.unionfs-fuse}/bin' /bin
chmod +x $out/bin/mount.unionfs-fuse
'';
boot.initrd.postDeviceCommands = lib.mkIf (!config.boot.initrd.systemd.enable) ''
# Hacky!!! fuse hard-codes the path to mount
mkdir -p /nix/store/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-${pkgs.util-linux.name}-bin/bin
ln -s $(which mount) /nix/store/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-${pkgs.util-linux.name}-bin/bin
ln -s $(which umount) /nix/store/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-${pkgs.util-linux.name}-bin/bin
'';
boot.initrd.systemd.extraBin = {
"mount.fuse" = "${pkgs.fuse}/bin/mount.fuse";
"unionfs" = "${pkgs.unionfs-fuse}/bin/unionfs";
"mount.unionfs-fuse" = pkgs.runCommand "mount.unionfs-fuse" {} ''
substitute ${pkgs.unionfs-fuse}/sbin/mount.unionfs-fuse $out \
--replace '${pkgs.bash}/bin/bash' /bin/sh \
--replace '${pkgs.fuse}/sbin' /bin \
--replace '${pkgs.unionfs-fuse}/bin' /bin
'';
};
})
(lib.mkIf (lib.any (fs: fs == "unionfs-fuse") config.boot.supportedFilesystems) {
system.fsPackages = [ pkgs.unionfs-fuse ];
})
];
}