Same problem. This is my first attempt at an upgrade on my desktop. The upgrade was successful on my older laptop, although I had just fresh installed 9.04 a few weeks ago.
Linux 2.6.28-15-generic #52-Ubuntu SMP Wed Sep 9 10:48:52 UTC 2009 x86_64 GNU/Linux
Same problem. This is my first attempt at an upgrade on my desktop. The upgrade was successful on my older laptop, although I had just fresh installed 9.04 a few weeks ago.
Linux 2.6.28-15-generic #52-Ubuntu SMP Wed Sep 9 10:48:52 UTC 2009 x86_64 GNU/Linux