Public bug reported: I got "An unresolvable problem occurred while calculating the upgrade." while trying to upgrade from 18.04 to 20.04. No further information about the problem was given before the "If none of this applies", just after that and an empty line the command for reporting the problem. Before trying to upgrade I installed all available updates to 18.04, and then got the message that my system was up to date but the upgrade was available.
ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: ubuntu-release-upgrader-core 1:18.04.38 ProcVersionSignature: Ubuntu 4.15.0-118.119-generic 4.15.18 Uname: Linux 4.15.0-118-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.17 Architecture: amd64 CrashDB: ubuntu Date: Tue Sep 29 13:16:18 2020 InstallationDate: Installed on 2018-08-14 (776 days ago) InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) PackageArchitecture: all SourcePackage: ubuntu-release-upgrader UpgradeStatus: Upgraded to bionic on 2020-09-29 (0 days ago) VarLogDistupgradeTermlog: ** Affects: ubuntu-release-upgrader (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic dist-upgrade third-party-packages -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1897725 Title: I got "An unresolvable problem occurred while calculating the upgrade." while trying to upgrade to focal fossa. No further information about the problem was given, just the command for reporting the problem. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1897725/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs