anchor.diff:        '';
       };
   
  -    isoImage.storeContents = pkgs.lib.mkOption {
  +    isoImage.storeContents = mkOption {
         example = [pkgs.stdenv];
         description = ''
           This option lists additional derivations to be included in the
  
positive.code:       }
      
        menuentry "NixOS Installer / Rescue" {
          linux /boot/vmlinuz init=/init systemConfig=/system ${toString config.boot.kernelParams}
          initrd /boot/initrd
        }
      '';
  
negative.code: 
    boot.loader.grub.version = 2;
  
    # Don't build the GRUB menu builder script, since we don't need it
    # here and it causes a cyclic dependency.
    boot.loader.grub.enable = false;
  
    # !!! Hack - attributes expected by other modules.
    system.build.menuBuilder = "true";
    system.boot.loader.kernelFile = "vmlinuz";
    environment.systemPackages = [ pkgs.grub2 ];
  
    # In stage 1 of the boot, mount the CD/DVD as the root FS by label
    # so that we don't need to know its device.
    fileSystems =
  