anchor.diff:  
       boot.initrd.postMountCommands = mkOption {
         default = "";
  -      merge = pkgs.lib.mergeStringOption;
  +      merge = mergeStringOption;
         description = ''
           Shell commands to be executed immediately after the stage 1
           filesystems have been mounted.
  
positive.code:     kernel = modulesTree;
      allowMissing = true;
    };
  
  
    # Some additional utilities needed in stage 1, like mount, lvm, fsck
  
negative.code: 
  { config, pkgs, ... }:
  
  with pkgs.lib;
  
  let
  
    options = {
  
  