anchor.diff:      boot.initrd.kernelModules =
         [ # For LVM.
           "dm_mod"
  -        # For usual AT keyboards
  -        "i8042" 
  +        
  +        # For usual AT keyboards.
  +        "i8042"        
         ];
   
       # The Linux kernel >= 2.6.27 provides firmware.
  
positive.code:     };
      
      boot.initrd.kernelModules = mkOption {
        default = [
        ];
        description = "List of modules that are always loaded by the initrd.";
      };
  
  
negative.code: 
          # Unix domain sockets (needed by udev).
          "unix"
  
          # Provide the CFQ scheduler in the initrd.
          "cfq_iosched"
          
          # Misc. stuff.
          "pcips2" "serio" "atkbd" "xtkbd"
  