Yesterday when rig didn't seem to be working, I rebooted it by unplugging the power cord (I don't have display connected so couldn't see what was going on). After that it didn't boot up automatically.
I got display hooked up, and saw that it had booted in emergency mode, and wanted me to press ctrl+d to continue booting.
Not a very nice feature if someone has remote rigs. Is there any way to skip emergency mode?