So, this is a little embarrassing. Just got a new server (HP ProLiant), installed Ubuntu, set an IP address, then wanted to move it into the server room.
sudo shutdown -P now to shutdown, the fans went quiet and the light on the front has gone to yellow (from green), but no matter what I seem to do I can’t get it to turn back on again!
Tried unplugging it and back in again, nothing. Can’t get the DVD drive to open. Looked all over for a button but can’t find anything. Any suggestions?!