Hi, I am trying to get my Xu4 to boot from an emmc card, I am using Armbian Bionic mainline kernel 4.9.y. I can write this to SD card, and it boots and runs OK. I prepared  the emmc card using the inbuilt system  nand-sata-install script.  The emmc card will not boot. I tried a couple of other iso.s same non result.   Checking the forum I found this thread started last year:- This thread was HIJACKED by Tkaiser ,  who turned it into a discussion about OM