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

[Michael Vogt]

To reproduce:
(open e.g. pbuilder chroot)
# apt-get install vim-tiny python-software-properties
# add-apt-repository ppa:ubuntu-x-swat/q-lts-backport
# apt-get install wine1.4
# apt-get install ia32-libs
# apt-get install xserver-xorg libgl1-mesa-{glx,dri}{,:i386}
and now
#  apt-get install xserver-xorg-lts-quantal libgl1-mesa-{glx,dri}-lts-quantal{,:i386} -o Debug::pkgDPkgPM=1 -y 
shows the error. or:
# apt-get install xserver-xorg-lts-quantal libgl1-mesa-{glx,dri}-lts-quantal{,:i386} -o Debug::pkgDPkgPM=1 -y 2>&1 | grep libglapi-mesa
...
/usr/bin/dpkg --status-fd 19 --unpack --auto-deconfigure /var/cache/apt/archives/libglapi-mesa-lts-quantal_9.0-0ubuntu1~precise1~ppa6.3_i386.deb 
/usr/bin/dpkg --status-fd 25 --configure libglapi-mesa-lts-quantal:i386 libglapi-mesa-lts-quantal:amd64 libgl1-mesa-glx-lts-quantal:i386 libgl1-mesa-glx-lts-quantal:amd64

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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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