[Bug 1068591] [NEW] release upgrade should deactivate /etc/apt/preferences*

[Martin Schläffer]

Public bug reported:

The Ubuntu release upgrader should deactivate any apt-pinning definded
in /etc/apt/preferences or /etc/apt/preferences.d/* and notify the user
when doing so. A similar behaviour is already the case when external
(PPA) sources are deactivated.

Otherwise, some random irritating error will be shown which does not
show the origin of the problem. In my case: "kubuntu-netbook cannot be
installed".

I use apt-pinning a lot and I know what I am doing. But when upgrading,
I usually forget that I have pinned packages or sources and it takes me
some time to find out what's wrong. It would just be nice to warn the
user and/or deactivate the pinning in /etc/apt/preferences/*

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: ubuntu-release-upgrader-core (not installed)
ProcVersionSignature: Ubuntu 3.2.0-32.51~ppa1-generic-tuxonice 3.2.30
Uname: Linux 3.2.0-32-generic-tuxonice x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu14
Architecture: amd64
Date: Fri Oct 19 13:38:00 2012
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
ProcEnviron:
 LANGUAGE=de_AT:de:en_US:en
 TERM=xterm
 PATH=(custom, user)
 LANG=de_AT.utf8
 SHELL=/bin/zsh
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to precise on 2012-10-19 (0 days ago)

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug precise

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https://bugs.launchpad.net/bugs/1068591

Title:
  release upgrade should deactivate /etc/apt/preferences*

Status in “ubuntu-release-upgrader” package in Ubuntu:
  New

Bug description:
  The Ubuntu release upgrader should deactivate any apt-pinning definded
  in /etc/apt/preferences or /etc/apt/preferences.d/* and notify the
  user when doing so. A similar behaviour is already the case when
  external (PPA) sources are deactivated.

  Otherwise, some random irritating error will be shown which does not
  show the origin of the problem. In my case: "kubuntu-netbook cannot be
  installed".

  I use apt-pinning a lot and I know what I am doing. But when
  upgrading, I usually forget that I have pinned packages or sources and
  it takes me some time to find out what's wrong. It would just be nice
  to warn the user and/or deactivate the pinning in
  /etc/apt/preferences/*

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: ubuntu-release-upgrader-core (not installed)
  ProcVersionSignature: Ubuntu 3.2.0-32.51~ppa1-generic-tuxonice 3.2.30
  Uname: Linux 3.2.0-32-generic-tuxonice x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.0.1-0ubuntu14
  Architecture: amd64
  Date: Fri Oct 19 13:38:00 2012
  InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
  ProcEnviron:
   LANGUAGE=de_AT:de:en_US:en
   TERM=xterm
   PATH=(custom, user)
   LANG=de_AT.utf8
   SHELL=/bin/zsh
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to precise on 2012-10-19 (0 days ago)

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