I installed CentOS 8 on a Dell server and it's been running fine as a
headless system, admin'd remotely by ssh. Now I'd like to allow someone to
shut it down at the console without logging in. Is there a way to do that?
Or do I need to get the GUI working?
I tried switching it into graphical mode ("systemctl isolate graphical")
and the console freezes with nothing but a non-blinking text cursor at top
left. The usual virtual console switching hotkeys (ctrl-alt F1-F7) don't do
anything when it's hung like this. The system is still responsive in my ssh
session. It doesn't recover if I switch back to multi-user target so I have
to reboot it to make the console useful again. I'm guessing I'm lacking a
good video driver. (It's an R720xd I inherited and the latest drivers on
Dell's site are for RHEL 7.)
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