dubraro

I finally succeeded, at eight or ten attempts. Hurray! I tried three other SD cards. I tried both the server and desktop version of the installation. I tried directly attached keyboard and monitor as well as a remote shell. Helped probably one of two things: The power from a laptop instead of an adapter (5V/2.5A) or set the correct time and date before start the upgrade.

I did the same. SD card = SanDisk micro SDHC Extreme Pro 8GB UHS-I. Compile still, at this moment for more than 20 hours. What can I do?

Me too. I ran the recommended upgrade on my OPI One and compiling the headers. It ran for about four hours without ending. Then I reset the OPI, it bricked. I used another SD card, installed clean Armbian image and run upgrade again. Already running for 3.5 hours. The computer is alive and working. I can open a second session through Alt-F2. The top command shows that most working are alternately cc1, apt-get, ld and make. Both SD cards are tried, tested, recommended type, U-1 class.