Just had a similar experience running do-release-upgrade -d from a terminal and upgrading from 18.04 to 20.04. The upgrade ran until after the packages had been downloaded, the screen went grey I couldn't change to a TTY. I was forced to reboot. On reboot the machine could not reboot normally however, I could start in an old kernel I the used a TTY to run the command dpkg --configure -a. All the remaining packages (several thousand) installed and after running apt-get autoremove the upgrade completed satisfactorily.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1846842 Title: the upgrade tool from 19.04 to 19.10 failed badly To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1846842/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
