[Bug 1316789] Re: libpostproc52:i386 fails to upgrade to libpostproc52:amd64 on multi-arch systems

[Brian Murray]

** Changed in: ubuntu-release-upgrader (Ubuntu)
    Milestone: None => trusty-updates

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https://bugs.launchpad.net/bugs/1316789

Title:
  libpostproc52:i386 fails to upgrade to libpostproc52:amd64 on multi-
  arch systems

Status in “ubuntu-release-upgrader” package in Ubuntu:
  Triaged

Bug description:
  TEST CASE:
  1. On a fresh saucy amd64 environment, enable multiarch
  2. Install the following packages:
  $ apt-get install gstreamer0.10-ffmpeg libpostproc52:i386
  3. Upgrade

  ACTUAL RESULT:
  Upgrade fails with:
  dpkg: error processing archive /var/cache/apt/archives/libpostproc52_6%3a0.git20120821-4_amd64.deb (--unpack):
   libpostproc52:amd64 6:0.git20120821-4 (Multi-Arch: no) is not co-installable with libpostproc52 which has multiple installed instances

  == Original Report ==
  When doing a system upgrade from 13.10 to 14.04 the message:

  Could not install '/var/cache/apt/archives/libpostproc52_6%3a0.git20120821-4_amd64.deb'
  The upgrade will continue but the '/var/cache/apt/archives/libpostproc52_6%3a0.git20120821-4_amd64.deb'
  package may not be in a working state. Please consider submiting a bug report about it.
  ---
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: KDE
  DistroRelease: Ubuntu 14.04
  InstallationDate: Installed on 2013-12-17 (141 days ago)
  InstallationMedia: Kubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  Package: ubuntu-release-upgrader (not installed)
  ProcVersionSignature: Ubuntu 3.13.0-24.47-generic 3.13.9
  Tags:  trusty dist-upgrade
  Uname: Linux 3.13.0-24-generic x86_64
  UpgradeStatus: Upgraded to trusty on 2014-05-06 (1 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers
  _MarkForUpload: True

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