[Bug 923525] Re: aptitude safe-upgrade attempts to install both "or" (|) dependencies

[Daniel Hartwig]

> It depends on the package apturl or the package apturl-kde. The package
> apturl was already installed but the package apturl-kde was not. Aptitude
> wanted to install the package apturl-kde and its dependants which numbered in
> the seventies.

Ok.  Is there not some other package depending on apturl-kde that was
also being installed?

> The command aptitude full-upgrade did not attempt to install
> the package apturl-kde or its dependants.

Full-upgrade is at times able to provide more succinct solutions because
it is permitted to remove packages.

Please provide full output of both safe-upgrade and full-upgrade
operations for comparison.

** Changed in: aptitude (Ubuntu)
       Status: New => Incomplete

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Title:
  aptitude safe-upgrade attempts to install both "or" (|) dependencies

Status in “aptitude” package in Ubuntu:
  Incomplete

Bug description:
  In bash I used the aptitude safe-upgrade command to attempt to install
  neccessary updates to both an Xubuntu 10.04.3 LTS system with kernel
  2.6.31-22-generic and an Ubuntu 10.04.3 LTS system with kernel
  2.6.32-38-generic.  Both systems use aptitude version
  0.4.11.11-1ubuntu10lucid1.  Amoung the upgrades was the package ubufox
  with the new version depending on the package xul-ext-ubufox.  That
  package was therefore marked for automatic installation.  It depends
  on the package apturl or the package apturl-kde.  The package apturl
  was already installed but the package apturl-kde was not.  Aptitude
  wanted to install the package apturl-kde and its dependants which
  numbered in the seventies.  The command aptitude full-upgrade did not
  attempt to install the package apturl-kde or its dependants.  In
  visual mode aptitude also did not attempt to install the unnecessary
  packages.

  I expect the safe resolver to be more conservative than the full
  resolver.  I expect it to avoid installing and removing packages in an
  upgrade.  I expect to be able to use the safe resolver without having
  to check if each package is actually needed.  I expect the safe
  resolver to parse the "or" symbol (|).

  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: aptitude 0.4.11.11-1ubuntu10lucid1
  ProcVersionSignature: Ubuntu 2.6.31-22.60-generic
  Uname: Linux 2.6.31-22-generic i686
  Architecture: i386
  Date: Sun Jan 29 14:51:34 2012
  ProcEnviron:
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: aptitude

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