anchor.diff:  
         # Copy modprobe.
         cp -v ${pkgs.module_init_tools}/sbin/modprobe $out/bin/modprobe.real
  +
  +      # Maybe copy splashutils.
  +      ${optionalString enableSplashScreen ''
  +        cp ${kernelPackages.splashutils}/${kernelPackages.splashutils.helperName} $out/bin/splash_helper
  +      ''}
   
         ${config.boot.initrd.extraUtilsCommands}
   
  
positive.code: 
      boot.initrd.postMountCommands = mkOption {
        default = "";
        merge = pkgs.lib.mergeStringOption;
        description = ''
          Shell commands to be executed immediately after the stage 1
          filesystems have been mounted.
  
negative.code:     boot.initrd.extraUtilsCommands = mkOption {
        internal = true;
        default = "";
        merge = mergeStringOption;
        description = ''
          Shell commands to be executed in the builder of the
          extra-utils derivation.  This can be used to provide
  