Comment 14 for bug 390319

I found a case in update-manager where this might have occurred but it was quite some time ago:

 $ bzr log -r 1124
------------------------------------------------------------
revno: 1124
committer: Michael Vogt <email address hidden>
branch nick: main
timestamp: Wed 2008-10-15 18:55:42 +0200
message:
  DistUpgrade/DistUpgradeController.py:
  - reenable cron job on failed downloads too

Walter could you attach the log files from your upgrade,? You'll find them in /var/log/dist-upgrade as they might help find another case where the cronjob's status is not returned.