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-rw-r--r--disk/part_efi.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/disk/part_efi.c b/disk/part_efi.c
index 338010e148..5856f93211 100644
--- a/disk/part_efi.c
+++ b/disk/part_efi.c
@@ -342,7 +342,7 @@ static int set_protective_mbr(block_dev_desc_t *dev_desc)
p_mbr->signature = MSDOS_MBR_SIGNATURE;
p_mbr->partition_record[0].sys_ind = EFI_PMBR_OSTYPE_EFI_GPT;
p_mbr->partition_record[0].start_sect = 1;
- p_mbr->partition_record[0].nr_sects = (u32) dev_desc->lba;
+ p_mbr->partition_record[0].nr_sects = (u32) dev_desc->lba - 1;
/* Write MBR sector to the MMC device */
if (dev_desc->block_write(dev_desc->dev, 0, 1, p_mbr) != 1) {