I can reproduce first part of the problem during an upgrade from 17.10 to 18.04 and the screen locks during the upgrade. It locks before u-r-u issues the inhibit command and proceeds with the upgrade with the screen locked.
I can reproduce first part of the problem during an upgrade from 17.10 to 18.04 and the screen locks during the upgrade. It locks before u-r-u issues the inhibit command and proceeds with the upgrade with the screen locked.