You can ignore the warning about uEnv.txt What about your screen? Does it power on sensing an input signal? You you get no GUI you must get at least a text login. Do you have an older udoobuntu 2 release to test against your board?
My monitor did work with earlier versions of Ubuntu and Android OS's. My monitor is acting like there is no video being output. It goes into power saving mode.
Is anyone else expecting HDMI video issues with beta3? sirrab, if you hae a spare uSD card, could you try to see if beta2 works for you, to exclude an issue with your screen/cables?
Hello Modjo, Would you be able to share how you managed to get your system booting the Udoobuntu2 via SATA? I've been struggling with this (I had it working with Udoobuntu 1 previously). Cheers, Gabor