anchor.diff:        { source = system.config.boot.grubSplashImage;
           target = "boot/background.xpm.gz";
         }
  +    ]
  +    ++
  +    pkgs.lib.optionals includeTarballs [
         { source = nixosTarball + "/" + nixosTarball.tarName;
           target = "/install/" + nixosTarball.tarName;
         }
         { source = nixpkgsTarball + "/nixpkgs.tar.bz2";
           target = "/install/nixpkgs.tar.bz2";
  +      }
  +      { source = servicesTarball + "/services.tar.bz2";
  +        target = "/install/services.tar.bz2";
         }
       ];
   
  
positive.code:               tar xjf /install/nixos.tar.bz2 -C /etc/nixos/nixos
                mkdir -p /etc/nixos/nixpkgs
                tar xjf /install/nixpkgs.tar.bz2 -C /etc/nixos/nixpkgs
                chown -R root.root /etc/nixos
              end script
            ";
  
negative.code: , configurationOverrides ? (config: {})
  # Whether to put all the build-time dependencies on DVD
  , includeBuildDeps ? false
  , includeTarballs ? true
  }:
  
  rec {
  