[Bug 1322442] Re: update-manager crash when upgrading from trusty to utopic

[Brian Murray]

*** This bug is a duplicate of bug 1322363 ***
    https://bugs.launchpad.net/bugs/1322363

** This bug has been marked a duplicate of bug 1322363
   obsolete_pkgs and foregin_pkgs can not be lists

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https://bugs.launchpad.net/bugs/1322442

Title:
  update-manager crash when upgrading from trusty to utopic

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

Bug description:
  Running 'update-manager -d' on my laptop to upgrade from trusty to
  utopic, it crashed (after getting rather far along) with the following
  backtrace:

  Traceback (most recent call last):
    File "/tmp/ubuntu-release-upgrader-nthx97q4/utopic", line 8, in <module>
      sys.exit(main())
    File "/tmp/ubuntu-release-upgrader-nthx97q4/DistUpgrade/DistUpgradeMain.py", line 239, in main
      if app.run():
    File "/tmp/ubuntu-release-upgrader-nthx97q4/DistUpgrade/DistUpgradeController.py", line 1820, in run
      return self.fullUpgrade()
    File "/tmp/ubuntu-release-upgrader-nthx97q4/DistUpgrade/DistUpgradeController.py", line 1798, in fullUpgrade
      self.doPostUpgrade()
    File "/tmp/ubuntu-release-upgrader-nthx97q4/DistUpgrade/DistUpgradeController.py", line 1249, in doPostUpgrade
      remove_candidates = now_obsolete - self.obsolete_pkgs
  TypeError: unsupported operand type(s) for -: 'set' and 'list'
  Error in sys.excepthook:
  Traceback (most recent call last):
    File "/usr/lib/python3/dist-packages/apport_python_hook.py", line 102, in apport_excepthook
      pr.add_proc_info(extraenv=['PYTHONPATH', 'PYTHONHOME'])
    File "/usr/lib/python3/dist-packages/apport/report.py", line 523, in add_proc_info
      raise ValueError('%s does not exist' % self['ExecutablePath'])
  ValueError: /usr/bin/python3.4 (deleted) does not exist

  Original exception was:
  Traceback (most recent call last):
    File "/tmp/ubuntu-release-upgrader-nthx97q4/utopic", line 8, in <module>
      sys.exit(main())
    File "/tmp/ubuntu-release-upgrader-nthx97q4/DistUpgrade/DistUpgradeMain.py", line 239, in main
      if app.run():
    File "/tmp/ubuntu-release-upgrader-nthx97q4/DistUpgrade/DistUpgradeController.py", line 1820, in run
      return self.fullUpgrade()
    File "/tmp/ubuntu-release-upgrader-nthx97q4/DistUpgrade/DistUpgradeController.py", line 1798, in fullUpgrade
      self.doPostUpgrade()
    File "/tmp/ubuntu-release-upgrader-nthx97q4/DistUpgrade/DistUpgradeController.py", line 1249, in doPostUpgrade
      remove_candidates = now_obsolete - self.obsolete_pkgs
  TypeError: unsupported operand type(s) for -: 'set' and 'list'

  This seems to happen at the end of the upgrade - ''apt-get -f install'
  / 'apt-get dist-upgrade' shows no packages pending.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: ubuntu-release-upgrader-core 1:14.10.3
  ProcVersionSignature: Ubuntu 3.13.0-24.47-generic 3.13.9
  Uname: Linux 3.13.0-24-generic x86_64
  ApportVersion: 2.14.2-0ubuntu4
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Thu May 22 22:54:50 2014
  InstallationDate: Installed on 2010-09-24 (1336 days ago)
  InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.1)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  Symptom: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to utopic on 2014-05-23 (0 days ago)
  VarLogDistupgradeTermlog:

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