Public bug reported: Trying to upgrade ubuntu 12.04 to the next LTS release I got the following error:
An unresolvable problem occurred while calculating the upgrade. This can be 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 ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: update-manager 1:0.156.14.12 ProcVersionSignature: Ubuntu 3.2.0-60.91-generic-pae 3.2.55 Uname: Linux 3.2.0-60-generic-pae i686 ApportVersion: 2.0.1-0ubuntu17.7 Architecture: i386 Date: Fri Oct 24 17:00:58 2014 GsettingsChanges: com.ubuntu.update-manager first-run false com.ubuntu.update-manager launch-time 1414157159 com.ubuntu.update-manager window-height 500 com.ubuntu.update-manager window-width 600 InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta i386 (20120301) MarkForUpload: True PackageArchitecture: all SourcePackage: update-manager Symptom: ubuntu-release-upgrader-core UpgradeStatus: Upgraded to precise on 2014-10-24 (0 days ago) VarLogDistupgradeAptclonesystemstate.tar.gz: Error: [Errno 13] Permission denied: '/var/log/dist-upgrade/apt-clone_system_state.tar.gz' ** Affects: update-manager (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug dist-upgrade i386 precise -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1385281 Title: Cannot upgrade ubuntu 12.04 precise to 14.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1385281/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs