[Bug 1897781] Re: System upgrade from Ubuntu 18.04 to 20.04 stops part-way through.

[Brian Murray]

Could you please try re-installing the ubuntu-desktop package via the
command line and then try the upgrade again? Thanks!

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

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https://bugs.launchpad.net/bugs/1897781

Title:
  System upgrade from Ubuntu 18.04 to 20.04 stops part-way through.

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

Bug description:
  "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'."

  I did uncheck my two ppa in my upgrade sources but still get the above
  error message.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.38
  ProcVersionSignature: Ubuntu 5.4.0-48.52~18.04.1-generic 5.4.60
  Uname: Linux 5.4.0-48-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.17
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Tue Sep 29 14:33:52 2020
  InstallationDate: Installed on 2020-09-04 (25 days ago)
  InstallationMedia: Ubuntu 18.04.5 LTS "Bionic Beaver" - Release amd64 (20200806.1)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2020-09-29 (0 days ago)
  VarLogDistupgradeTermlog:

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