# File lib/cloudhost/util.rb, line 49
    def cleanup_stale_autostart_files
      xen_dir = "/etc/xen/auto"
      valid_files = @guests.map {|g| File.join(xen_dir, g.name)}
      all_files = Dir[File.join(xen_dir, "*")]

      (all_files - valid_files).each do |f| 
        $LOG.debug("Cleaning up stale autostart file: #{f}")
        FileUtils.rm_f(f)
      end
    end