Public bug reported: When doing the upgrade, it states an unresolvable problem occurred while calculating the upgrade. This is caused by: * Upgrading to a pre-release version of Ubuntu * Running the current pre-release version of Ubuntu* Unofficial software packages not provided by Ubuntu if none of this applies, then please report this bug using the command 'ubuntu-bug ubuntu-release-upgrader-core' in a terminal
ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: update-manager 1:0.156.14.21 ProcVersionSignature: Ubuntu 3.2.0-117.159-generic-pae 3.2.79 Uname: Linux 3.2.0-117-generic-pae i686 ApportVersion: 2.0.1-0ubuntu17.13 Architecture: i386 Date: Mon Dec 5 09:34:40 2016 GsettingsChanges: com.ubuntu.update-manager first-run false com.ubuntu.update-manager launch-time 1480947912 com.ubuntu.update-manager window-height 500 com.ubuntu.update-manager window-width 600 InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release i386 (20120817.3) MarkForUpload: True PackageArchitecture: all ProcEnviron: LANGUAGE=en_US:en TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: update-manager Symptom: ubuntu-release-upgrader-core UpgradeStatus: Upgraded to precise on 2016-12-05 (0 days ago) VarLogDistupgradeTermlog: ** Affects: update-manager (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug dist-upgrade i386 package-from-proposed precise running-unity third-party-packages -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1647383 Title: When attempting to upgrade from ubuntu 12.04 to 14.04, it crashes? Why is that and how can that be resolved? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1647383/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs