Very much the same case here. ie same issue with dbus and the os.
Adding import os to the /usr/lib/python2.5/site-packages/UpdateManager/DistUpgradeFetcher.py fixed it for me.
Please consider getting fixed fully
Very much the same case here. ie same issue with dbus and the os.
Adding import os to the /usr/lib/ python2. 5/site- packages/ UpdateManager/ DistUpgradeFetc her.py fixed it for me.
Please consider getting fixed fully