We already register an nt_signature parameter for MBR partitions. Register an equivalent guid parameter for GPT partitions as well. This is less critical because disk GUID isn't used for root= Linux boot argument computation, as each partition has its own PARTUUID. It's still useful to allow shell scripts to check against it to detect e.g. a factory flash image. Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx> --- common/partitions/efi.c | 1 + 1 file changed, 1 insertion(+) diff --git a/common/partitions/efi.c b/common/partitions/efi.c index 848bed22610f..0f3f790539cd 100644 --- a/common/partitions/efi.c +++ b/common/partitions/efi.c @@ -446,6 +446,7 @@ static void efi_partition(void *buf, struct block_device *blk, } snprintf(blk->cdev.uuid, sizeof(blk->cdev.uuid), "%pUl", &gpt->disk_guid); + dev_add_param_string_fixed(blk->dev, "guid", blk->cdev.uuid); nb_part = le32_to_cpu(gpt->num_partition_entries); -- 2.30.2
