Running Ubuntu 18.04 on a non-headless server dedicated only to cryptocurrency mining.
The server, after some moments of mining, beeps and reboots. While it does that, there is some kind of error message that I can't get to read, is a lot like if you blink it you'll miss kinda thing. Lasts less than a second on screen before rebooting.
I've tried checking every log at /var/log and also journalctl looking for this error message with no luck. Tried to log all the output of the miner to >> minerlog.log with no luck. If i SSH to the server through putty, the error message is not shown, so logging a putty session doesn't work either.
My question is, then, is there a way to log all the text displayed in the monitor to a file so I can check lather what's that error message? Or if a log like that already exists?