kumquat-buildroot/board/aarch64-efi/genimage-efi.cfg

image efi-part.vfat {
	vfat {
		file EFI {
			image = "efi-part/EFI"
		}
		file Image {
			image = "Image"
		}
	}

	size = 32M
}

image disk.img {
	hdimage {
		gpt = true
	}

	partition boot {
		image = "efi-part.vfat"
		partition-type-uuid = c12a7328-f81f-11d2-ba4b-00a0c93ec93b
		offset = 32K
		bootable = true
	}

	partition root {
		partition-type-uuid = b921b045-1df0-41c3-af44-4c6f280d3fae
		image = "rootfs.ext2"
	}
}