Public bug reported: ubuntu release: Description: Ubuntu 18.04.5 LTS Release: 18.04
Error output: Could not calculate the upgrade An unresolvable problem occurred while calculating the upgrade. This was likely caused by: * Unofficial software packages not provided by Ubuntu Please use the tool 'ppa-purge' from the ppa-purge package to remove software from a Launchpad PPA and try the upgrade again. If none of this applies, then please report this bug using the command 'ubuntu-bug ubuntu-release-upgrader-core' in a terminal. If you want to investigate this yourself the log files in '/var/log/dist-upgrade' will contain details about the upgrade. Specifically, look at 'main.log' and 'apt.log'. Restoring original system state Aborting Reading package lists... Done Building dependency tree Reading state information... Done main.log : 2020-08-10 11:44:24,081 ERROR Dist-upgrade failed: 'E:Error, pkgProblemResolversolver::Resolve generated breaks, this may be caused by held packages.' 2020-08-10 11:44:24,082 DEBUG abort called purged all rc status files but still unresolved ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: ubuntu-release-upgrader-core 1:18.04.38 ProcVersionSignature: Ubuntu 5.4.0-42.46~18.04.1-generic 5.4.44 Uname: Linux 5.4.0-42-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.16 Architecture: amd64 CrashDB: ubuntu CurrentDesktop: ubuntu:GNOME Date: Mon Aug 10 11:49:54 2020 InstallationDate: Installed on 2020-01-04 (219 days ago) InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805) PackageArchitecture: all SourcePackage: ubuntu-release-upgrader UpgradeStatus: Upgraded to bionic on 2020-08-10 (0 days ago) mtime.conffile..etc.update-manager.release-upgrades: 2020-08-10T11:20:53.956256 ** Affects: ubuntu-release-upgrader (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic dist-upgrade -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1890989 Title: can't upgrade to ubuntu 20.04.1 LTS , says caused by unofficial software packages not provided by ubuntu To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1890989/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs