[Bug 1776994] Re: upgrade broken

[Brian Murray]

If this bug report is about a failure to calculate the upgrade then it
is because you have enabled a PPA which provides xorg packages that have
greater version numbers than the release to which you are trying to
upgrade. Please install the package ppa-purge and use the tool it
provides, called ppa-purge, to remove the PPA and restore the official
version of the package and try the upgrade again. If that is not the
issue you are trying to report please reopen the bug.

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

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https://bugs.launchpad.net/bugs/1776994

Title:
  upgrade broken

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

Bug description:
  ATTENTION: default value of option force_s3tc_enable overridden by environment.
  [6255:6290:0614/143520.822237:ERROR:in_progress_cache_impl.cc(93)] Could not read download entries from file because there was a read failure.
  [6255:6255:0614/143521.729303:ERROR:background_mode_manager_aura.cc(13)] Not implemented reached in virtual void BackgroundModeManager::EnableLaunchOnStartup(bool)
  [6255:6255:0614/143522.746506:ERROR:display_info_provider_aura.cc(31)] Not implemented reached in virtual void extensions::DisplayInfoProviderAura::UpdateDisplayUnitInfoForPlatform(const display::Display &, extensions::api::system_display::DisplayUnitInfo *)
  [6255:6331:0614/143546.591925:ERROR:object_proxy.cc(617)] Failed to call method: org.freedesktop.Notifications.GetCapabilities: object_path= /org/freedesktop/Notifications: org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubuntu-release-upgrader-core 1:16.04.25
  ProcVersionSignature: Ubuntu 4.4.0-128.154-generic 4.4.131
  Uname: Linux 4.4.0-128-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.18
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Thu Jun 14 14:35:06 2018
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2016-06-08 (735 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: No upgrade log present (probably fresh install)
  VarLogDistupgradeTermlog:

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