[Bug 1896380] Re: An unresolvable problem occurred while calculating the upgrade. 18.04 to 20.04

[Launchpad Bug Tracker]

[Expired for ubuntu-release-upgrader (Ubuntu) because there has been no
activity for 60 days.]

** Changed in: ubuntu-release-upgrader (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1896380

Title:
  An unresolvable problem occurred while calculating the upgrade. 18.04
  to 20.04

Status in ubuntu-release-upgrader package in Ubuntu:
  Expired

Bug description:
  I have removed all ppas as well as removing some packages via

  apt remove $(apt-forktracer | grep -i ppa | awk '{print $1}')

  The error does not indicate where the problem might be.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.38
  Uname: Linux 5.7.1-050701-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.9-0ubuntu7.17
  Architecture: amd64
  CrashDB: ubuntu
  Date: Sun Sep 20 15:22:19 2020
  InstallationDate: Installed on 2018-08-26 (756 days ago)
  InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2020-09-20 (0 days ago)
  mtime.conffile..etc.update-manager.release-upgrades: 2020-08-22T23:06:48.773333

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