anchor.diff:      else "nixos-${builtins.readFile ../../VERSION}"
   , compressImage ? false
   , nixpkgs ? ../../../nixpkgs
  -, services ? ../../../services
   # This option allows easy building of Rescue CD with 
   # modified package set / driver set / anything.
   # For easier maitenance, let overrider know the current
  
positive.code:   
      boot = {
        isLiveCD = true;
        extraTTYs = [7 8]; # manual, rogue
        extraModulePackages = [system.kernelPackages.aufs];
        
        kernelPackages = pkgs.kernelPackages_2_6_28;
  
negative.code:       { source = nixpkgsTarball + "/nixpkgs.tar.bz2";
          target = "/install/nixpkgs.tar.bz2";
        }
      ];
  
      # Closures to be copied to the Nix store on the CD.
  