Public bug reported: $ sudo do-release-upgrade
... An unresolvable problem occurred while calculating the upgrade ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: ubuntu-release-upgrader-core 1:0.192.13 ProcVersionSignature: Ubuntu 3.8.0-29.42-generic 3.8.13.5 Uname: Linux 3.8.0-29-generic x86_64 ApportVersion: 2.9.2-0ubuntu8.3 Architecture: amd64 CrashDB: ubuntu Date: Fri Oct 18 00:12:43 2013 InstallationDate: Installed on 2013-01-12 (278 days ago) InstallationMedia: Xubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.1) MarkForUpload: True PackageArchitecture: all SourcePackage: ubuntu-release-upgrader UpgradeStatus: Upgraded to raring on 2013-10-17 (0 days ago) ** Affects: ubuntu-release-upgrader (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug dist-upgrade raring -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1241235 Title: do-release-upgrade -> An unresolvable problem occurred while calculating the upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1241235/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs