Many of you know that I’ve been running and testing Ubuntu 7.10 “Gutsy” since early in the alpha stage. There have been no show stoppers and its been fun to see the development continue to happen, and be able to contribute to that by submitting bugs. Again, I have not seen any major bugs, just little oddities here and there. If you can please consider upgrading to Ubuntu 7.10 beta (released 9-27-07) and help us finish what is left of the bugs.
I have heard from a few people that had a few odd issues upgrading. One “fix” that I used worked in my situation and may work for others so I thought I would share it.
If you get an error about having upgrades available but when you try to retrieve them they are not accessible my guess (again, this may not be completely accurate) is that repository data between the many mirrors is not synced properly with the actual repository. I have found changing your repository to a different mirror often helps clear up this issue.
You can find a *very* long list of available mirrors in System > Admin > Software Sources : “Download From” drop-down, select “other”. At this point you can select one from the list or “Select Best Server”.
In the long run I would suggest more people select the best server for their area. In any event, try a new repository and see if that helps refresh your list and get the updates that should be available. I hope this helps.