Ignore the AlternateLBA field in the GPT headers.

src/platform/vboot_reference/utility/cgpt/cgpt_show.c

Index: src/platform/vboot_reference/utility/cgpt/cgpt_show.c
diff --git a/src/platform/vboot_reference/utility/cgpt/cgpt_show.c b/src/platform/vboot_reference/utility/cgpt/cgpt_show.c
index 91bf1ef5e520d4999ab67e983c7d959fed36b80c..b7348aa08b2d6fff218b2bb9f892b9d27a5283fb 100644
--- a/src/platform/vboot_reference/utility/cgpt/cgpt_show.c
+++ b/src/platform/vboot_reference/utility/cgpt/cgpt_show.c
@@ -108,7 +108,6 @@ static void HeaderDetails(GptHeader *header, const char *indent) {
   printf("%sSize: %d\n", indent, header->size);
   printf("%sHeader CRC: 0x%08x\n", indent, header->header_crc32);
   printf("%sMy LBA: %lld\n", indent, (long long)header->my_lba);
-  printf("%sAlter LBA: %lld\n", indent, (long long)header->alternate_lba);
   printf("%sFirst LBA: %lld\n", indent, (long long)header->first_usable_lba);
   printf("%sLast LBA: %lld\n", indent, (long long)header->last_usable_lba);
 
@@ -214,7 +213,6 @@ int CgptShow(int argc, char *argv[]) {
     return CGPT_FAILED;
   }
 
-  OpenDriveInLastArgument(argc, argv, &drive);
   if (CGPT_OK != OpenDriveInLastArgument(argc, argv, &drive))
     return CGPT_FAILED;