[Bug 1791468] Re: Lubuntu-Upgrade to 18.04.01 fails

[Brian Murray]

*** This bug is a duplicate of bug 1069133 ***
    https://bugs.launchpad.net/bugs/1069133

Reviewing the files from your upgrade attempt you seem to have enabled a
PPA that provides Xorg packages. This will prevent the upgrade as that
PPA contains package version numbers greater than the release to which
you are upgrading. You can revert the PPA by installing the ppa-purge
package from the official Ubuntu archive and then running 'sudo ppa-
purge oibaf'.  After that you try upgrading and again and if it still
fails open a new bug report.  Thanks and good luck!

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

** Tags added: ppa xorg-oibaf-ppa

** This bug has been marked a duplicate of bug 1069133
   Get upgrade error 12.04 - 12.10 "Could not determine upgrade" - xorg from ppa

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https://bugs.launchpad.net/bugs/1791468

Title:
  Lubuntu-Upgrade to 18.04.01 fails

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

Bug description:
  Es konnte nicht ermittelt werden, welche Systemaktualisierungen
  verfügbar sind

  Ein unlösbares Problem trat beim Ermitteln der Systemaktualisierung
  auf.

   Dies kann verursacht worden sein durch:
   * Aktualisieren auf eine Vorabversion von Ubuntu
   * Verwendung der aktuellen Vorabversion von Ubuntu
   * Inoffizielle Softwarepakete, die nicht von Ubuntu bereitgestellt wurden

  Falls nichts von dem zutrifft, melden Sie diesen Fehler bitte, indem
  Sie den Befehl »ubuntu-bug ubuntu-release-upgrader-core« in einem
  Terminal ausführen.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubuntu-release-upgrader-core 1:16.04.25
  ProcVersionSignature: Ubuntu 4.4.0-134.160-generic 4.4.140
  Uname: Linux 4.4.0-134-generic i686
  NonfreeKernelModules: talpa_vfshook talpa_pedconnector talpa_pedevice talpa_vcdevice talpa_core talpa_linux talpa_syscallhook
  ApportVersion: 2.20.1-0ubuntu2.18
  Architecture: i386
  CrashDB: ubuntu
  CurrentDesktop: LXDE
  Date: Sat Sep  8 22:31:33 2018
  InstallationDate: Installed on 2016-01-02 (979 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release i386 (20140722.2)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to xenial on 2018-09-08 (0 days ago)
  VarLogDistupgradeTermlog:

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