[Bug 1903410] Re: not able to upgrade to 20.04 fm 18.04 Could not calculate the upgrade An unresolvable problem occurred while calculating the upgrade.

[maneli]

** Changed in: ubuntu-release-upgrader (Ubuntu)
       Status: New => Invalid

** Converted to question:
   https://answers.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+question/694046

** Information type changed from Public to Private

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https://bugs.launchpad.net/bugs/1903410

Title:
  not able to upgrade to 20.04 fm 18.04 Could not calculate the upgrade
  An unresolvable problem occurred while calculating the upgrade.

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

Bug description:
  not able to upgrade to 20.04 fm 18.04 Could not calculate the upgrade  An unresolvable problem occurred while calculating the upgrade.
   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'.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.38 [origin: unknown]
  ProcVersionSignature: Ubuntu 4.15.0-117.118-generic 4.15.18
  Uname: Linux 4.15.0-117-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.9-0ubuntu7.17
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: GNOME-Flashback:GNOME
  Date: Sat Nov  7 19:19:08 2020
  InstallationDate: Installed on 2018-08-10 (820 days ago)
  InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2020-11-07 (0 days ago)
  VarLogDistupgradeTermlog:
   
  mtime.conffile..etc.update-manager.release-upgrades: 2020-09-16T10:42:37.026162

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