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

[Colin Watson]

Given the need for upstream work, nothing else is going to realistically
get done for .1, although I've left it at precise-updates in case some
backportable upstream work happens later.  (I can't do any more myself,
so unassigning myself.)

** Changed in: aptitude (Ubuntu Precise)
    Milestone: ubuntu-12.04.1 => ubuntu-12.04.2

** Changed in: aptitude (Ubuntu Precise)
    Milestone: ubuntu-12.04.2 => precise-updates

** Changed in: aptitude (Ubuntu Precise)
     Assignee: Colin Watson (cjwatson) => (unassigned)

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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:
  New

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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