[Bug 1712624] Re: Unable to complete upgrade from 16.10

[Ubuntu Foundations Team Bug Bot]

*** 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 different versions of packages essential to Ubuntu. The
page, https://launchpad.net/~xorg-edgers/+archive/ppa, contains details
on to how to revert to the official Xorg packages for the xorg-edgers
PPA.  Instructions for reverting to official Xorg packages should be
similar for the PPA that you have enabled. Thanks.

[This is an automated message.  I apologize if it reached you
inappropriately; please just reply to this message indicating so.]

** Tags added: yakkety2zesty

** Tags added: ppa

** Tags added: xorg-edgers-ppa

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

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https://bugs.launchpad.net/bugs/1712624

Title:
  Unable to complete upgrade from 16.10

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

Bug description:
  Unable to complete do-release-upgrade on 16.10:

  Error is:

  Could not calculate the upgrade

  An unresolvable problem occurred while calculating the upgrade.

  This can be caused by:
  * Upgrading to a pre-release version of Ubuntu
  * Running the current pre-release version of Ubuntu
  * Unofficial software packages not provided by Ubuntu

  If none of this applies, then please report this bug using the
  command 'ubuntu-bug ubuntu-release-upgrader-core' in a terminal.

  Restoring original system state

  Aborting

  Additional Info:

  lsb_release -rd
  Description:	Ubuntu 16.10
  Release:	16.10

  apt-cache policy ubuntu-release-upgrader-core
  ubuntu-release-upgrader-core:
    Installed: 1:16.10.10
    Candidate: 1:16.10.10
    Version table:
   *** 1:16.10.10 500
          500 http://us.archive.ubuntu.com/ubuntu yakkety-updates/main amd64 Packages
          500 http://us.archive.ubuntu.com/ubuntu yakkety-updates/main i386 Packages
          100 /var/lib/dpkg/status
       1:16.10.6 500
          500 http://us.archive.ubuntu.com/ubuntu yakkety/main amd64 Packages
          500 http://us.archive.ubuntu.com/ubuntu yakkety/main i386 Packages

  ProblemType: Bug
  DistroRelease: Ubuntu 16.10
  Package: ubuntu-release-upgrader-core 1:16.10.10
  ProcVersionSignature: Ubuntu 4.8.0-59.64-generic 4.8.17
  Uname: Linux 4.8.0-59-generic x86_64
  ApportVersion: 2.20.3-0ubuntu8.7
  Architecture: amd64
  CrashDB: ubuntu
  Date: Wed Aug 23 11:59:20 2017
  InstallationDate: Installed on 2016-08-25 (363 days ago)
  InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_US
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to yakkety on 2017-08-23 (0 days ago)

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