see http://www.cnx-software.com/2017/04/28/24-sunvell-r69-android-4-4-tv-box-is-powered-by-allwinner-h2-processor/   This device boots from uSD with Ubuntu desktop – legacy kernel 5.30 for OrangePi One and RetrOrangePi-3.0.1.Orangepione.img. It didn't boot after initial setting and reboot command/automatic reboot (I don't know why yet, but it should boot and resize fs). It looks it somehow breaks filesystem on uSD card (and I don't have different uSD card to test it).   Ether