[Bug 1055386] Re: When applying upgrade from 12.04 to 12.10 I got a ERROR and update-manager crashed

[Galanh]

inside the file /var/lib/dpkg/status there are two libsdl-image*
packages

gato at gato-laptop:~$ sed -n -e 21949,21986p /var/lib/dpkg/status
Package: libsdl-image1.2
Status: deinstall ok config-files
Priority: optional
Section: libs
Installed-Size: 112
Maintainer: Ubuntu Developers <ubuntu-devel-discuss at lists.ubuntu.com>
Architecture: amd64
Source: sdl-image1.2
Version: 1.2.7-1
Config-Version: 1.2.7-1
Depends: libc6 (>= 2.4), libjpeg62, libpng12-0 (>= 1.2.13-4), libsdl1.2debian (>> 1.2.4), libtiff4, zlib1g (>= 1:1.1.4)
Conflicts: armagetron (<< 0.1.4.9-5), burgerspace (<< 1.6.1-1), criticalmass (<< 0.97-2), libparagui1.0 (<= 0.1.0-1), libsdl-perl (<< 1.16-2)
Description: image loading library for Simple DirectMedia Layer 1.2
 This is a simple library to load images of various formats as SDL surfaces.
 This library currently supports BMP, PPM, PCX, GIF, JPEG, PNG, TIFF, and XPM
 formats.
Original-Maintainer: Michael Koch <konqueror at gmx.de>
Homepage: http://www.libsdl.org/projects/SDL_image/

Package: libsdl-image1.2
Status: install ok installed
Multi-Arch: same
Priority: optional
Section: libs
Installed-Size: 96
Maintainer: Ubuntu Developers <ubuntu-devel-discuss at lists.ubuntu.com>
Architecture: i386
Source: sdl-image1.2
Version: 1.2.10-3
Depends: libc6 (>= 2.11), libjpeg8 (>= 8c), libpng12-0 (>= 1.2.13-4), libsdl1.2debian (>= 1.2.10-1), libtiff4
Pre-Depends: multiarch-support
Description: image loading library for Simple DirectMedia Layer 1.2
 This is a simple library to load images of various formats as SDL surfaces.
 This library currently supports BMP, PPM, PCX, GIF, JPEG, PNG, TIFF, and XPM
 formats.
Original-Maintainer: Debian SDL packages maintainers <pkg-sdl-maintainers at lists.alioth.debian.org>
Homepage: http://www.libsdl.org/projects/SDL_image/

gato at gato-laptop:~$

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https://bugs.launchpad.net/bugs/1055386

Title:
  When applying upgrade from 12.04 to 12.10 I got a ERROR and update-
  manager crashed

Status in “update-manager” package in Ubuntu:
  Incomplete

Bug description:

  I was doing a partial upgrade from 12.04 to 12.10
  during the application of new packages the update-manager crashed.
  Last lines in terminal were:

  AssertionError
  Original exception was:
  Traceback (most recent call last):
    File "/usr/bin/update-manager", line 113, in <module>
      controller.doPartialUpgrade()
    File "/usr/lib/python2.7/dist-packages/DistUpgrade/DistUpgradeController.py", line 1748, in doPartialUpgrade
      if not self.doPostUpgrade():
    File "/usr/lib/python2.7/dist-packages/DistUpgrade/DistUpgradeController.py", line 1152, in doPostUpgrade
      now_obsolete = self.cache._getObsoletesPkgs()
    File "/usr/lib/python2.7/dist-packages/DistUpgrade/DistUpgradeCache.py", line 985, in _getObsoletesPkgs
      for pkg in self:
    File "/usr/lib/python2.7/dist-packages/apt/cache.py", line 197, in __iter__
      yield self[pkgname]
    File "/usr/lib/python2.7/dist-packages/apt/cache.py", line 182, in __getitem__
      pkg = self._weakref[key] = Package(self, self._cache[key])
  KeyError: '0ad-dbg:i386'

  My OS was Ubuntu 12.04 and my kernel was 3.2.0-31-generic
  Now my kernel is 3.0.0-17-generic (at least is what I got when I do uname -r).

  because my previous upgrade didn't complete update-manager doesn't work
  it is telling me "index software is broken" please use Synaptic or sudo apt-get install -f to fix this issue
  but I don't know how.
  I didn't reboot my new system, please give me a hint what to do.

  Thanks
  Horacio

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