Enable attributes to display and set properly.

src/platform/vboot_reference/vboot_firmware/lib/cgptlib/cgptlib.c

 /* Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "cgptlib.h"
 #include "cgptlib_internal.h"
 #include "crc32.h"
 #include "gpt.h"
 #include "utility.h"
 
+/* global types to compare against */
+const Guid guid_unused = GPT_ENT_TYPE_UNUSED;
+const Guid guid_chromeos_kernel = GPT_ENT_TYPE_CHROMEOS_KERNEL;
+
 
 int GptInit(GptData *gpt) {
   int retval;
 
   gpt->modified = 0;
   gpt->current_kernel = CGPT_KERNEL_ENTRY_NOT_FOUND;
   gpt->current_priority = 999;
 
   retval = GptSanityCheck(gpt);
   if (GPT_SUCCESS != retval)
@@ skipping 114 matching lines @@
 
   /* Use the repair function to update the other copy of the GPT.
    * This is a tad inefficient, but is much faster than the disk I/O
    * to update the GPT on disk so it doesn't matter. */
   gpt->valid_headers = MASK_PRIMARY;
   gpt->valid_entries = MASK_PRIMARY;
   GptRepair(gpt);
 
   return GPT_SUCCESS;
 }