[Bug 1573781] Re: Several held broken packages prevent upgrade to xenial

[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 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.

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

** Tags added: ppa xorg-edgers-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/1573781

Title:
  Several held broken packages prevent upgrade to xenial

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

Bug description:
  Many packages (all attached in apt.log) are marked broken on
  wily->xenial upgrade. But I don't know more.

  ERROR Dist-upgrade failed: 'E:Unable to correct problems, you have
  held broken packages.'

  I haven't personally put any packages on hold.

  Logs should explain more, I'm not sure what packages to downgrade...

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: ubuntu-release-upgrader-core 1:15.10.14.4
  Uname: Linux 4.6.0-rc3+ x86_64
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  CrashDB: ubuntu
  Date: Fri Apr 22 21:26:39 2016
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2016-01-08 (105 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_GB
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to wily on 2016-04-22 (0 days ago)

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