Public bug reported: I tried to upgrade to 17.04 and it started out okay, but then said
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. I don't think any of that applies, so I ran the command in a terminal. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: ubuntu-release-upgrader-core 1:16.10.10 ProcVersionSignature: Ubuntu 4.8.0-46.49-generic 4.8.17 Uname: Linux 4.8.0-46-generic x86_64 ApportVersion: 2.20.3-0ubuntu8.2 Architecture: amd64 CrashDB: ubuntu CurrentDesktop: XFCE Date: Thu Apr 13 20:05:16 2017 InstallationDate: Installed on 2014-10-25 (901 days ago) InstallationMedia: Xubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) PackageArchitecture: all SourcePackage: ubuntu-release-upgrader UpgradeStatus: Upgraded to yakkety on 2017-04-13 (0 days ago) VarLogDistupgradeTermlog: ** Affects: ubuntu-release-upgrader (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug dist-upgrade yakkety -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1682682 Title: Upgrade from 16.10 to 17.04 failed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1682682/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs