I ran into this as well. Examining my system while this is hung, I see this process running:
"# ps ax | grep whiptail 11195 pts/1 S+ 0:00 whiptail --backtitle Package configuration --title Configuring Secure Boot --output-fd 12 --nocancel --msgbox Your system has UEFI Secure Boot enabled. UEFI Secure Boot requires additional configuration to work with third-party drivers. The system will assist you in configuring UEFI Secure Boot. To permit the use of third-party drivers, a new Machine-Owner Key (MOK) has been generated. This key now needs to be enrolled in your system's firmware. To ensure that this change is being made by you as an authorized user, and not by an attacker, you must choose a password now and then confirm the change after reboot using the same password, in both the "Enroll MOK" and "Change Secure Boot state" menus that will be presented to you when this system reboots. If you proceed but do not confirm the password upon reboot, Ubuntu will still be able to boot on your system but any hardware that requires third-party drivers to work correctly may not be usable. --scrolltext 21 77" -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1775526 Title: package linux-image-4.15.0-22-generic 4.15.0-22.24 failed to install/upgrade: installed linux-image-4.15.0-22-generic package pre- removal script subprocess returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1775526/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
