buildroot/board/intel/galileo/genimage.cfg

# Create an image of the efi partition
image efi-part.vfat {
	vfat {
		file EFI {
			image = "efi-part/EFI"
		}
	}

	size = 512K
}

# Create the sdcard image, pulling in
#  * the image created by buildroot
#  * the efi-partition created above
image sdcard.img {
	hdimage {
	}

	partition boot {
		partition-type = 0xC
		image = "efi-part.vfat"
	}

	partition rootfs {
		partition-type = 0x83
		image = "rootfs.ext2"
		size = 512M
	}
}