Intermittent Boot Issues

[yurievitch]

I got the Manjaro setup process then on reboot, I got the orange to green led sequence but no back light on the screen. After a few power cycles I was able to boot into Manjaro. Every other power cycle the issue returns though. I can do a hard poweroff and power back up and it fixes the issue; though, it sometimes takes 3 or 4 power cycles to fix the issue. There seems to be no relation between power connectivity across boots as I have read in other posts on this forum. I have also tried switching ttys and trying to reboot through the serial console, as if the screen were just blanked, which was also fruitless.

I had the same issue: Manjaro would boot every third of fourth try. I fixed this by writing u-boot files from mrfixit2001 updates_repo to the eMMC. While this worked for me I cannot tell you why and could not find the sources for those files

Same thing here. Is there an F key that lets me choose what device to boot to? I want to install Ubuntu Mate via a usb thumb drive.