It appears that the kubuntu 12.04 LTS KDE Plasma GUI Muon Update Manager (now obsolete and replaced with PPASC - the PPA Software Centre, which currently fails to launch on my kubuntu 14.04 system) might have been interfering with the install that it was trying to effect. Once removed and the 14.04 install was launched from the terminal shell, the install worked by way of that method.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1357645 Title: Could not calculate the 12.04-14.04 upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1357645/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
