It seems to me that the error message barre87 got has nothing to do with the upgrade not proceeding. I think it has to do with this line in the main log:
2010-05-13 11:18:13,787 ERROR IOError/SystemError in cache.update(): 'Il server potrebbe essere sovraccarico'. Retrying (currentRetry: 0)
2010-05-13 11:18:13,787 ERROR doUpdate() failed completely
Which, thanks to Google Translate, means that the server is overloaded.
Download failed on every repo that apt tried to update.
It seems to me that the error message barre87 got has nothing to do with the upgrade not proceeding. I think it has to do with this line in the main log:
2010-05-13 11:18:13,787 ERROR IOError/SystemError in cache.update(): 'Il server potrebbe essere sovraccarico'. Retrying (currentRetry: 0)
2010-05-13 11:18:13,787 ERROR doUpdate() failed completely
Which, thanks to Google Translate, means that the server is overloaded.
Download failed on every repo that apt tried to update.
That's why the upgrade didn't go through.