anchor.diff:  
       title Memtest86+
         kernel /boot/memtest.bin
  -  '';
  +  '' 
  +    + (pkgs.lib.concatStringsSep "\n\n" 
  +        (map (x: ''
  +	  title NixOS: ${x.configurationName}
  +	    kernel ${x.kernel} systemConfig=${x} init=${x.bootStage2} ${toString system.config.boot.kernelParams}
  +	    initrd ${x.initrd}
  +	'') system.children)))
  +    ;
   
   
     # Create an ISO image containing the Grub boot loader, the kernel,
  
positive.code: 
      volumeID = cdLabel;
    };
  
  
  }
  
negative.code:   cdLabel = "NIXOS_INSTALLATION_CD";
  
    
    baseConfiguration = {
    
      boot = {
        isLiveCD = true;
  