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https://github.com/ilyakooo0/nixpkgs.git
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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.
44 lines
1.7 KiB
Nix
44 lines
1.7 KiB
Nix
{ config, pkgs, lib, ... }:
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{
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config = lib.mkMerge [
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(lib.mkIf (config.boot.initrd.supportedFilesystems.unionfs-fuse or false) {
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boot.initrd.kernelModules = [ "fuse" ];
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boot.initrd.extraUtilsCommands = lib.mkIf (!config.boot.initrd.systemd.enable) ''
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copy_bin_and_libs ${pkgs.fuse}/sbin/mount.fuse
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copy_bin_and_libs ${pkgs.unionfs-fuse}/bin/unionfs
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substitute ${pkgs.unionfs-fuse}/sbin/mount.unionfs-fuse $out/bin/mount.unionfs-fuse \
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--replace '${pkgs.bash}/bin/bash' /bin/sh \
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--replace '${pkgs.fuse}/sbin' /bin \
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--replace '${pkgs.unionfs-fuse}/bin' /bin
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chmod +x $out/bin/mount.unionfs-fuse
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'';
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boot.initrd.postDeviceCommands = lib.mkIf (!config.boot.initrd.systemd.enable) ''
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# Hacky!!! fuse hard-codes the path to mount
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mkdir -p /nix/store/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-${pkgs.util-linux.name}-bin/bin
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ln -s $(which mount) /nix/store/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-${pkgs.util-linux.name}-bin/bin
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ln -s $(which umount) /nix/store/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-${pkgs.util-linux.name}-bin/bin
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'';
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boot.initrd.systemd.extraBin = {
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"mount.fuse" = "${pkgs.fuse}/bin/mount.fuse";
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"unionfs" = "${pkgs.unionfs-fuse}/bin/unionfs";
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"mount.unionfs-fuse" = pkgs.runCommand "mount.unionfs-fuse" {} ''
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substitute ${pkgs.unionfs-fuse}/sbin/mount.unionfs-fuse $out \
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--replace '${pkgs.bash}/bin/bash' /bin/sh \
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--replace '${pkgs.fuse}/sbin' /bin \
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--replace '${pkgs.unionfs-fuse}/bin' /bin
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'';
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};
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})
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(lib.mkIf (config.boot.supportedFilesystems.unionfs-fuse or false) {
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system.fsPackages = [ pkgs.unionfs-fuse ];
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})
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];
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}
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