Hi, I am trying to make the OPI Zero boot with the help of the onboard SPI with the goal to boot from an usb drive and not from the sdcard.   What steps should be executed. I only managed to get the Xenial image to work with my 512Mb board... so that is what I want to use. I assume... I need to make u-boot work with the sdcard... move the whole thing to the usb drive (with the u-boot) and than populate somehow the SPI with the image of an SPL, which would get it up through the u-boot on the