Traceback (most recent call last):
  File "/usr/bin/update-manager", line 105, in <module>
    controler.doPartialUpgrade()
  File "/usr/lib/python2.6/dist-packages/DistUpgrade/DistUpgradeController.py", line 1655, in doPartialUpgrade
    self.prepare()
  File "/usr/lib/python2.6/dist-packages/DistUpgrade/DistUpgradeController.py", line 390, in prepare
    self.openCache()
  File "/usr/lib/python2.6/dist-packages/DistUpgrade/DistUpgradeController.py", line 186, in openCache
    self._view.getOpCacheProgress())
  File "/usr/lib/python2.6/dist-packages/DistUpgrade/DistUpgradeCache.py", line 103, in __init__
    raise CacheExceptionDpkgInterrupted, e
CacheExceptionDpkgInterrupted: E:dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem.