Public bug reported: When upgrading from 15.10 to 16.04 went ok until we got the could not calculate the upgrade error message.
I read if there are unofficial software packages it could be the problem. How would I know what packages are unofficial and how exactly would I remove them? Long time Ubuntu user over 7 years if that helps. ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: ubuntu-release-upgrader-core 1:15.10.14.4 ProcVersionSignature: Ubuntu 4.2.0-35.40-generic 4.2.8-ckt5 Uname: Linux 4.2.0-35-generic i686 ApportVersion: 2.19.1-0ubuntu5 Architecture: i386 CrashDB: ubuntu CurrentDesktop: Unity Date: Thu Apr 21 17:02:46 2016 InstallationDate: Installed on 2016-02-25 (55 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release i386 (20150422) PackageArchitecture: all SourcePackage: ubuntu-release-upgrader UpgradeStatus: Upgraded to wily on 2016-04-21 (0 days ago) VarLogDistupgradeTermlog: ** Affects: ubuntu-release-upgrader (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug dist-upgrade i386 third-party-packages wily -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1573252 Title: upgrade to 16.04 could not calculate the upgrade error To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1573252/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs