*** This bug is a duplicate of bug 1069133 *** https://bugs.launchpad.net/bugs/1069133
Public bug reported: Update ends with: Fetched 998 kB in 6s (277 kB/s) 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 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: ubuntu-release-upgrader-core 1:0.220.8 ProcVersionSignature: Ubuntu 3.13.0-68.111-generic 3.13.11-ckt27 Uname: Linux 3.13.0-68-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.18 Architecture: amd64 CrashDB: ubuntu CurrentDesktop: Unity Date: Sun Nov 15 17:08:15 2015 InstallationDate: Installed on 2013-11-02 (743 days ago) InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1) PackageArchitecture: all SourcePackage: ubuntu-release-upgrader UpgradeStatus: Upgraded to trusty on 2015-11-15 (0 days ago) mtime.conffile..etc.update.manager.release.upgrades: 2015-11-15T09:06:51.633841 ** Affects: ubuntu-release-upgrader (Ubuntu) Importance: Undecided Status: Invalid ** Tags: amd64 apport-bug dist-upgrade ppa trusty xorg-edgers-ppa -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1516401 Title: upgrade 14.04 to 15.04 problem To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1516401/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs