[Bug 823953] Re: aptitude ignores preferences files in /etc/apt/preferences.d/

[Daniel Hartwig]

** Bug watch added: Debian Bug tracker #557580
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=557580

** Also affects: aptitude via
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=557580
   Importance: Unknown
       Status: Unknown

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Title:
  aptitude ignores preferences files in /etc/apt/preferences.d/

Status in aptitude:
  Unknown
Status in “aptitude” package in Ubuntu:
  New

Bug description:
  Under Ubuntu 10.10, I created a file "/etc/apt/preferences.d/ubuntu-x
  -swat-ppa-nvidia" (attached) containing pinning preferences for apt.
  apt-get honours my preferences, offering me updates to the nvidia
  packages only (I don't have or want ATI or Intel driver updates).
  aptitude (and synaptic), however, only honours my preferences file if
  I move it to "/etc/apt/preferences". I expect aptitude (and synaptic)
  to honour my pinning preferences, whether they are stored in the
  "/etc/apt/preferences" file or their own file in
  "/etc/apt/preferences.d/".

  $ sudo vi /etc/apt/preferences.d/ubuntu-x-swat-ppa-nvidia

  $ sudo apt-get upgrade
  Reading package lists... Done
  Building dependency tree       
  Reading state information... Done
  0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

  $ sudo aptitude upgrade
  The following packages will be upgraded: 
    fglrx-modaliases intel-gpu-tools libdrm-intel1 libdrm-nouveau1 libdrm-radeon1 libdrm2 
    xserver-xorg-video-ati xserver-xorg-video-intel xserver-xorg-video-radeon 
  9 packages upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
  Need to get 998kB of archives. After unpacking 32.8kB will be used.
  Do you want to continue? [Y/n/?] n
  Abort.

  $ sudo mv /etc/apt/preferences.d/ubuntu-x-swat-ppa-nvidia
  /etc/apt/preferences

  $ sudo aptitude upgrade
  No packages will be installed, upgraded, or removed.
  0 packages upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
  Need to get 0B of archives. After unpacking 0B will be used.

  $ lsb_release -rd
  Description:	Ubuntu 10.10
  Release:	10.10

  $ apt-cache policy apt aptitude synaptic
  apt:
    Installed: 0.8.3ubuntu7.1
    Candidate: 0.8.3ubuntu7.1
    Version table:
   *** 0.8.3ubuntu7.1 0
          500 http://gb.archive.ubuntu.com/ubuntu/ maverick-updates/main amd64 Packages
          100 /var/lib/dpkg/status
       0.8.3ubuntu7 0
          500 http://gb.archive.ubuntu.com/ubuntu/ maverick/main amd64 Packages
  aptitude:
    Installed: 0.6.3-2ubuntu4
    Candidate: 0.6.3-2ubuntu4
    Version table:
   *** 0.6.3-2ubuntu4 0
          500 http://gb.archive.ubuntu.com/ubuntu/ maverick/main amd64 Packages
          100 /var/lib/dpkg/status
  synaptic:
    Installed: 0.63.1ubuntu14
    Candidate: 0.63.1ubuntu14
    Version table:
   *** 0.63.1ubuntu14 0
          500 http://gb.archive.ubuntu.com/ubuntu/ maverick/main amd64 Packages
          100 /var/lib/dpkg/status

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