Public bug reported: upgrade GUI hangs, if system files have been changed in past, for example \etc\default\openvpn etc.
My Workaround: Find upgrade process: Not easy and to complicate for beginners kill upgrade process open terminal sudo dpkg --configure -a sudo reboot ** Affects: ubuntu-release-upgrader (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1448774 Title: vivid upgrade hangs, if system files have been changed before To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1448774/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs