apport information ** Tags added: apport-collected bionic dist-upgrade
** Description changed: I have these error in upgrading from 18 to 20: An unresolvable problem occurred while calculating the upgrade. This was caused by: * Upgrading to a pre-release version of Ubuntu This is most likely a transient problem, please try again later. in Main.log I have this error: 2020-11-05 22:10:12,844 DEBUG quirks: running PreDistUpgradeCache 2020-11-05 22:10:12,844 DEBUG running Quirks.PreDistUpgradeCache 2020-11-05 22:10:12,844 INFO checking for python-dbg 2020-11-05 22:10:12,844 INFO installing python2-dbg because python-dbg was installed 2020-11-05 22:10:12,844 DEBUG Installing 'python2-dbg' (python-dbg was installed on the system) 2020-11-05 22:10:13,143 ERROR Dist-upgrade failed: 'E:Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.' 2020-11-05 22:10:13,145 DEBUG abort called 2020-11-05 22:10:13,147 DEBUG openCache() 2020-11-05 22:10:17,895 DEBUG Comparing 5.4.0-51 with 2020-11-05 22:10:17,896 DEBUG Comparing 5.4.0-52 with 5.4.0-51 2020-11-05 22:10:18,367 DEBUG /openCache(), new cache size 100218 + --- + ProblemType: Bug + ApportVersion: 2.20.9-0ubuntu7.19 + Architecture: amd64 + CrashDB: ubuntu + CurrentDesktop: ubuntu:GNOME + DistroRelease: Ubuntu 18.04 + InstallationDate: Installed on 2019-03-12 (604 days ago) + InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210) + Package: ubuntu-release-upgrader (not installed) + ProcVersionSignature: Ubuntu 5.4.0-52.57~18.04.1-generic 5.4.65 + Tags: bionic dist-upgrade + Uname: Linux 5.4.0-52-generic x86_64 + UpgradeStatus: Upgraded to bionic on 2020-11-05 (0 days ago) + UserGroups: adm cdrom dip docker lpadmin plugdev sambashare sudo + _MarkForUpload: True ** Attachment added: "ProcCpuinfoMinimal.txt" https://bugs.launchpad.net/bugs/1903212/+attachment/5431785/+files/ProcCpuinfoMinimal.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1903212 Title: Error in upgrading to Ubuntu 20 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1903212/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs