diff options
Diffstat (limited to 'disk')
| -rw-r--r-- | disk/part_efi.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/disk/part_efi.c b/disk/part_efi.c index b5928e5..893cbbd 100644 --- a/disk/part_efi.c +++ b/disk/part_efi.c @@ -324,6 +324,13 @@ static int set_protective_mbr(struct blk_desc *dev_desc) printf("%s: calloc failed!\n", __func__); return -1; } + + /* Read MBR to backup boot code if it exists */ + if (blk_dread(dev_desc, 0, 1, p_mbr) != 1) { + error("** Can't read from device %d **\n", dev_desc->devnum); + return -1; + } + /* Append signature */ p_mbr->signature = MSDOS_MBR_SIGNATURE; p_mbr->partition_record[0].sys_ind = EFI_PMBR_OSTYPE_EFI_GPT; |