Bootable SD card

Partitioning
 card=/dev/sdc dd if=/dev/zero of=$card bs=1M count=1 sfdisk -R $card cat < dd if=spl/sunxi-spl.bin of=$card bs=1024 seek=8 dd if=u-boot.bin of=$card bs=1024 seek=32

External

 * u-boot/sunxi wiki]