board/beaglev/genimage.cfg

image sdcard.img {
	hdimage {
		partition-table-type = "gpt"
	}

	partition rootfs {
		partition-type-uuid = 72ec70a6-cf74-40e6-bd49-4bda08e8f224
		partition-uuid = 0fef845a-c6e1-45bc-82f7-002fa720f958
		bootable = "true"
		image = "rootfs.ext4"
	}
}