‘sleep 300 && init 6’ was my go-to, but since then systemd has made firing init 6 unreliable (it won’t trigger a reboot locally if root has an open ssh session,

‘sleep 300 && init 6’ was my go-to, but since then systemd has made firing init 6 unreliable (it won’t trigger a reboot locally if root has an open ssh session, at least on Ubuntu).