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

[Book 'em Dano]

Thanks for taking the time to report this bug and helping to make Ubuntu
better. Could you please add the log files from '/var/log/dist-upgrade/'
to this bug report as separate attachments? Thanks in advance.

** Package changed: ubuntu => update-manager (Ubuntu)

** Changed in: update-manager (Ubuntu)
       Status: New => Incomplete

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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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