buildroot

image sdcard.img {

    hdimage {

    }

​

    partition u-boot {

        in-partition-table = "no"

        image = "u-boot-sunxi-with-spl.bin"

        offset = 8192

        size = 1040384 # 1MB - 8192

    }

​

    partition rootfs {

        partition-type = 0x83

        image = "rootfs.ext4"

        size = 512M

    }

}