I've just hit this trying to do a wily to xenial upgrade in Virtualbox on Xenial. This happened shortly after the font cache was regenerated. If I switch to tty3 with ALT+F3 and back to tty2 everything is back to normal (this wasn't immediate, 3-5 minutes later).
After this occurred, I switched to tty3 and ran ps aux | grep dpkg and I could see packages still being installed. I think Nikita got "E: dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem." message because the VM was restarted shortly after this issue occurred. Nikita, could you confirm? The gnome-shell did not crash, it looks more like the display was being reinitialized. I was able to remove obsolete packages after packages were installed and asked to reboot. This issue doesn't seem to persist across a reboot either. Nikita, did you install the Virtualbox Guest Additions when you ran the upgrade? Also, distribution upgrade logs are located under /var/log/dist-upgrade. I will rollback to wily, install the virtualbox guest additions, reboot then upgrade to see if missing guest additions could be the cause. Logs attached. ** Attachment added: "Upgrade Logs" https://bugs.launchpad.net/ubuntu-gnome/+bug/1553230/+attachment/4606471/+files/dist-upgrade-logs.tar.bz2 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1553230 Title: Something very strange happened during a dist-upgrade - 16.04 Beta 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-gnome/+bug/1553230/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
