diff options
Diffstat (limited to 'disk/part_efi.c')
| -rw-r--r-- | disk/part_efi.c | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/disk/part_efi.c b/disk/part_efi.c index 216a2920c27..c74b7b91705 100644 --- a/disk/part_efi.c +++ b/disk/part_efi.c @@ -93,7 +93,15 @@ void print_part_efi(block_dev_desc_t * dev_desc) if (is_gpt_valid(dev_desc, GPT_PRIMARY_PARTITION_TABLE_LBA, gpt_head, &gpt_pte) != 1) { printf("%s: *** ERROR: Invalid GPT ***\n", __func__); - return; + if (is_gpt_valid(dev_desc, (dev_desc->lba - 1), + gpt_head, &gpt_pte) != 1) { + printf("%s: *** ERROR: Invalid Backup GPT ***\n", + __func__); + return; + } else { + printf("%s: *** Using Backup GPT ***\n", + __func__); + } } debug("%s: gpt-entry at %p\n", __func__, gpt_pte); @@ -142,7 +150,15 @@ int get_partition_info_efi(block_dev_desc_t * dev_desc, int part, if (is_gpt_valid(dev_desc, GPT_PRIMARY_PARTITION_TABLE_LBA, gpt_head, &gpt_pte) != 1) { printf("%s: *** ERROR: Invalid GPT ***\n", __func__); - return -1; + if (is_gpt_valid(dev_desc, (dev_desc->lba - 1), + gpt_head, &gpt_pte) != 1) { + printf("%s: *** ERROR: Invalid Backup GPT ***\n", + __func__); + return -1; + } else { + printf("%s: *** Using Backup GPT ***\n", + __func__); + } } if (part > le32_to_cpu(gpt_head->num_partition_entries) || @@ -252,7 +268,7 @@ int write_gpt_table(block_dev_desc_t *dev_desc, != pte_blk_cnt) goto err; - /* recalculate the values for the Second GPT Header */ + /* recalculate the values for the Backup GPT Header */ val = le64_to_cpu(gpt_h->my_lba); gpt_h->my_lba = gpt_h->alternate_lba; gpt_h->alternate_lba = cpu_to_le64(val); |