[Bug 1881694] Re: I can't upgrade from 18.04 to 20.04

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

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

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https://bugs.launchpad.net/bugs/1881694

Title:
  I can't upgrade from 18.04 to 20.04

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

Bug description:
  subairkm at Subair-desktop:~$ lsb_release -rd
  Description:	Ubuntu 18.04.4 LTS
  Release:	18.04

  subairkm at Subair-desktop:~$ apt-cache policy pkgname
  N: Unable to locate package pkgname

  Expected: I want to upgrade from 18.04 to 20.04

  Happened: An unresolvable problem occurred while calculating the
  upgrade.

   This was likely caused by:
   * Unofficial software packages not provided by Ubuntu
  Please use the tool 'ppa-purge' from the ppa-purge 
  package to remove software from a Launchpad PPA and 
  try the upgrade again.

  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 1:18.04.37
  ProcVersionSignature: Ubuntu 4.15.0-101.102-generic 4.15.18
  Uname: Linux 4.15.0-101-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.15
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Tue Jun  2 09:08:13 2020
  InstallationDate: Installed on 2018-03-06 (818 days ago)
  InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2020-06-02 (0 days ago)
  VarLogDistupgradeTermlog:

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