[Bug 1571677] [NEW] upgrading caused a broken apt cache due to *-lts-vivid packages conflicting with current X packages

[Mario Limonciello]

Public bug reported:

I upgraded from a 14.04 release that had the various *-lts-vivid
packages installed to 16.04 using do-release-upgrade -d.

After upgrading the apt cache is busted because none of the meta and
xorg-core packages can get installed.

t at t-XPS-13-9350:/var/crash$ sudo apt upgrade
[sudo] password for t: 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 libgl1-mesa-dri-lts-vivid : Conflicts: libgl1-mesa-dri
 xserver-xorg-core-lts-vivid : Conflicts: xserver-xorg-core
                               Conflicts: xserver-xorg-video-modesetting
 xserver-xorg-lts-vivid : Conflicts: libgl1-mesa-dri (>= 0~)
                          Conflicts: libxatracker2 (>= 0~)
                          Conflicts: xserver-xorg
                          Conflicts: xserver-xorg-core (>= 0~)
                          Conflicts: xserver-xorg-video-all (>= 0~) but 1:7.7+13ubuntu3 is to be installed
                          Recommends: xserver-xorg-input-all-lts-vivid but it is not installable
                          Recommends: xserver-xorg-video-all-lts-vivid but it is not installable
                          Recommends: libegl1-mesa-drivers-lts-vivid but it is not installable
                          Recommends: libgles2-mesa-lts-vivid but it is not installable
                          Recommends: libgles1-mesa-lts-vivid but it is not installable
E: Broken packages

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ubuntu-release-upgrader-core 1:16.04.11
ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
Uname: Linux 4.4.0-18-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: Unity
Date: Mon Apr 18 09:14:22 2016
DistributionChannelDescriptor:
 # This is a distribution channel descriptor
 # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
 canonical-oem-somerville-trusty-amd64-osp1-20150720-0
InstallationDate: Installed on 2016-04-03 (14 days ago)
InstallationMedia: Ubuntu 14.04 "Trusty" - Build amd64 LIVE Binary 20150720-04:06
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
Symptom: ubuntu-release-upgrader
UpgradeStatus: Upgraded to xenial on 2016-04-18 (0 days ago)

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug dist-upgrade xenial

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https://bugs.launchpad.net/bugs/1571677

Title:
  upgrading caused a broken apt cache due to *-lts-vivid packages
  conflicting with current X packages

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

Bug description:
  I upgraded from a 14.04 release that had the various *-lts-vivid
  packages installed to 16.04 using do-release-upgrade -d.

  After upgrading the apt cache is busted because none of the meta and
  xorg-core packages can get installed.

  t at t-XPS-13-9350:/var/crash$ sudo apt upgrade
  [sudo] password for t: 
  Reading package lists... Done
  Building dependency tree       
  Reading state information... Done
  Calculating upgrade... Done
  Some packages could not be installed. This may mean that you have
  requested an impossible situation or if you are using the unstable
  distribution that some required packages have not yet been created
  or been moved out of Incoming.
  The following information may help to resolve the situation:

  The following packages have unmet dependencies:
   libgl1-mesa-dri-lts-vivid : Conflicts: libgl1-mesa-dri
   xserver-xorg-core-lts-vivid : Conflicts: xserver-xorg-core
                                 Conflicts: xserver-xorg-video-modesetting
   xserver-xorg-lts-vivid : Conflicts: libgl1-mesa-dri (>= 0~)
                            Conflicts: libxatracker2 (>= 0~)
                            Conflicts: xserver-xorg
                            Conflicts: xserver-xorg-core (>= 0~)
                            Conflicts: xserver-xorg-video-all (>= 0~) but 1:7.7+13ubuntu3 is to be installed
                            Recommends: xserver-xorg-input-all-lts-vivid but it is not installable
                            Recommends: xserver-xorg-video-all-lts-vivid but it is not installable
                            Recommends: libegl1-mesa-drivers-lts-vivid but it is not installable
                            Recommends: libgles2-mesa-lts-vivid but it is not installable
                            Recommends: libgles1-mesa-lts-vivid but it is not installable
  E: Broken packages

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubuntu-release-upgrader-core 1:16.04.11
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Mon Apr 18 09:14:22 2016
  DistributionChannelDescriptor:
   # This is a distribution channel descriptor
   # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
   canonical-oem-somerville-trusty-amd64-osp1-20150720-0
  InstallationDate: Installed on 2016-04-03 (14 days ago)
  InstallationMedia: Ubuntu 14.04 "Trusty" - Build amd64 LIVE Binary 20150720-04:06
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  Symptom: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to xenial on 2016-04-18 (0 days ago)

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