[Bug 1877761] Re: Upgrading to new LTS 20 from LTS 18 via command update-manager -d

[Brian Murray]

There is a new version of the release upgrader available which may
address the failure to calculate an upgrade which you encountered. Could
you please try the upgrade again and report back? Thanks in advance.

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

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https://bugs.launchpad.net/bugs/1877761

Title:
  Upgrading to new LTS 20 from LTS 18 via command update-manager -d

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

Bug description:
  Description:	Ubuntu 18.04.4 LTS
  Release:	18.04
  Error message says
  This was probably caused by:
    * Unofficial software packages not published by Ubuntu
  Use the "ppa-purge" tool from the ppa-purge package
  to remove software from a Launchpad PPA and
  try to upgrade again.

  I am trying to upgrade to new LTS using terminal command update-manager -d
  I've installed ppa-purge and tried using it but I can't seem to figure out which to package to remove. I've tried looking in the logs but the issue "escapes" me
  Regards, Simon

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.37
  ProcVersionSignature: Ubuntu 4.15.0-99.100-generic 4.15.18
  Uname: Linux 4.15.0-99-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.14
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Sat May  9 18:25:31 2020
  InstallationDate: Installed on 2016-06-02 (1437 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2020-05-09 (0 days ago)
  VarLogDistupgradeTermlog:

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