39 lines
		
	
	
		
			847 B
		
	
	
	
		
			Nix
		
	
	
	
	
	
		
		
			
		
	
	
			39 lines
		
	
	
		
			847 B
		
	
	
	
		
			Nix
		
	
	
	
	
	
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								{ 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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								        cp -v ${pkgs.btrfsProgs}/bin/btrfsck $out/bin
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								        cp -v ${pkgs.btrfsProgs}/bin/btrfs $out/bin
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								        ln -sv btrfsck $out/bin/fsck.btrfs
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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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