[Bug 1808558] Re: Unable to upgrade from Ubuntu 16.04LTS to 18.04LTS

[Brian Murray]

Thank you for taking the time to report this bug and helping to make
Ubuntu better. The error that you are a reporting is a package conflict
between a package from the official Ubuntu archive and a package from a
PPA. To resolve this situation please uninstall the package from a PPA
using the tool 'ppa-purge' which is provided by the ppa-purge package.
Then try performing the package operations again. Thanks in advance!

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

** Tags added: package-conflict ppa-conflict

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https://bugs.launchpad.net/bugs/1808558

Title:
  Unable to upgrade from Ubuntu 16.04LTS to 18.04LTS

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

Bug description:
  After an update of some packages by the package manager (GUI mode), an
  available upgrade to 18.04LTS was displayed in a new window. I clicked
  "OK" for the upgrade, but ultimately the upgrade didn't happen.

  I wasn't really planning on upgrading, but since the dialog window
  showed that I could upgrade, I went along with it. Of course, in the
  end, the upgrade failed.

  Thanks.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubuntu-release-upgrader-core 1:16.04.26
  ProcVersionSignature: Ubuntu 4.15.0-42.45~16.04.1-generic 4.15.18
  Uname: Linux 4.15.0-42-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.20.1-0ubuntu2.18
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Fri Dec 14 09:42:09 2018
  InstallationDate: Installed on 2018-01-01 (347 days ago)
  InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to xenial on 2018-12-14 (0 days ago)
  VarLogDistupgradeTermlog:
   
  mtime.conffile..etc.update-manager.release-upgrades: 2018-09-09T06:31:53.089990

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