Public bug reported: Not able to upgrade, extra debug info attached.
ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: ubuntu-release-upgrader-core 1:0.220.10 ProcVersionSignature: Ubuntu 4.4.0-131.157~14.04.1-generic 4.4.134 Uname: Linux 4.4.0-131-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.29 Architecture: amd64 CrashDB: ubuntu CurrentDesktop: Unity Date: Wed Aug 8 14:47:39 2018 InstallationDate: Installed on 2016-02-29 (891 days ago) InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805) PackageArchitecture: all SourcePackage: ubuntu-release-upgrader UpgradeStatus: Upgraded to trusty on 2018-08-08 (0 days ago) VarLogDistupgradeTermlog: ** 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/1786001 Title: Unresolvable issue occured while calculating upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1786001/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs