[Bug 1062503] Re: apt fails to install libglapi-mesa-lts-quantal correctly on switching x stacks

[Michael Vogt]

Unpack in /tmp and run:
$ apt-get  install -y -o Debug::pkgDPkgPM=1 -o dir::state::status=/tmp/precise/var/lib/dpkg/status -o Dir=/tmp/precise  xserver-xorg-lts-quantal libgl1-mesa-{glx,dri}-lts-quantal{,:i386}  -o debug::nolocking=true 2>&1 | grep libglapi-mesa
...
/usr/bin/dpkg --status-fd 16 --unpack --auto-deconfigure /tmp/precise/var/cache/apt/archives/libglapi-mesa-lts-quantal_9.0-0ubuntu1~precise1~ppa6.3_i386.deb 
/usr/bin/dpkg --status-fd 22 --configure libglapi-mesa-lts-quantal:i386 libglapi-mesa-lts-quantal:amd64 libgl1-mesa-glx-lts-quantal:i386 libgl1-mesa-glx-lts-quantal:amd64 

(may require 64bit install)

** Attachment added: "reproducer tarball"
   https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1062503/+attachment/3404264/+files/lp1062503.tar.gz

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https://bugs.launchpad.net/bugs/1062503

Title:
  apt fails to install libglapi-mesa-lts-quantal correctly on switching
  x stacks

Status in “apt” package in Ubuntu:
  New

Bug description:
  I'm trying to get renaming x stacks between normal xorg and xorg from
  quantal working, and for that the I've renamed all the xorg packages
  with a conflicts/provides/replaces on the unrenamed packages.

  This works reasonably well but now switching between them fails if I
  have wine installed from ppa:~ubuntu-wine/ppa and ia32-libs installed.

  I'm switching by installing ppa:ubuntu-x-swat/q-lts-backport , having
  xorg-server updated and libgl1-mesa-{glx,dri}{,:i386} installed and
  then installing with apt-get install xorg-server-lts-quantal
  libgl1-mesa-{glx,dri}-lts-quantal{,:i386}  for conflict resolution.

  However, halfway through it installs libglapi-mesa-lts-quantal:i386
  after removing libglapi-mesa for both archs, then proceeds to install
  libgl1-mesa-glx-lts-quantal for both archs, but because libglapi-mesa-
  lts-quantal:amd64 is not installed dpkg fails and you're stuck with a
  broken installation.

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