[Bug 831768] Re: aptitude cannot handle conflicts with multiarch enabled

[Fyodor Kupchik]

Daniel, thank you for the patch!
Just finished building 0.6.6 with "multiarch-conflicts.patch"  applied. Run aptitude and update went OK. However, after update and pressing CTRL+G I see that aptitude still unable to understand that libqt4-gui both i386 and amd64 can coesist like apt-get does.
Tested with Aptitude::ProblemResolver::StepLimit "0"; hack applied.

So no improvement for me... Shall I use 0.6.8 aptitude version and try
again?

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https://bugs.launchpad.net/bugs/831768

Title:
  aptitude cannot handle conflicts with multiarch enabled

Status in aptitude:
  Confirmed
Status in “aptitude” package in Ubuntu:
  Triaged
Status in “aptitude” source package in Oneiric:
  Triaged
Status in “aptitude” source package in Precise:
  Triaged
Status in Baltix GNU/Linux:
  Incomplete
Status in “aptitude” package in Debian:
  Unknown

Bug description:
  TEST CASE:
  1. Enable multiarch (should be automatic on new oneiric systems)
  2. Install an i386 package on amd64 (like flashplugin-installer:i386)
  3. Mark something with a lot of dependencies for installation
  4. On the confirmation screen, try to remove on of the dependencies (aptitude will now fail to perform upgrades when there's a package conflict w/out removing the i386 libs)

  This renders aptitude painful on a multiarch enabled system (default
  in oneiric).

  WORKAROUND:
  1. If you can survive without 32 bit libraries, just comment out the single line in /etc/dpkg/dpkg.cfg.d/multiarch; or
  2. Use another package manager (e.g. apt-get, synaptic, or Software Center)
  3. Disable the problem resolver by adding this line in /etc/apt/apt.conf:

  Aptitude::ProblemResolver::StepLimit "0";

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: aptitude 0.6.4-1ubuntu2
  Architecture: amd64

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