Public bug reported:
Tried to upgrade from 14.04 to 14.10 Changed /etc/update-manager/release-upgrades to have: Prompt=normal And then ran upgrade sudo do-release-upgrade Source: http://askubuntu.com/questions/614075/update-lubuntu-14-04-to-14-10 Got error: " Checking package manager Reading package lists... Done Building dependency tree Reading state information... Done Building data structures... Done Calculating the changes Calculating the changes Could not calculate the upgrade 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 If none of this applies, then please report this bug using the command 'ubuntu-bug ubuntu-release-upgrader-core' in a terminal. Restoring original system state Aborting Reading package lists... Done Building dependency tree Reading state information... Done Building data structures... Done === Command terminated with exit status 1 (Fri Jan 15 06:55:49 2016) === " ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: ubuntu-release-upgrader-core 1:0.220.8 ProcVersionSignature: Ubuntu 3.13.0-74.118-generic 3.13.11-ckt30 Uname: Linux 3.13.0-74-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.19 Architecture: amd64 CrashDB: ubuntu CurrentDesktop: Unity Date: Fri Jan 15 06:53:51 2016 PackageArchitecture: all SourcePackage: ubuntu-release-upgrader UpgradeStatus: Upgraded to trusty on 2016-01-15 (0 days ago) modified.conffile..etc.update.manager.release.upgrades: [modified] mtime.conffile..etc.update.manager.release.upgrades: 2016-01-15T06:51:49.046263 ** Affects: ubuntu-release-upgrader (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug dist-upgrade trusty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1534571 Title: 14.04->14.10 Upgrade didn't go through due to three reasons that seem shouldn't apply To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1534571/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
