Testing with update-manager version 1:0.59.23 I received error messages regarding dbus not being defined. I then updated to update-manager version 1:0.59.24 and was able to update to Gutsy without receiving any error messages.
Testing with update-manager version 1:0.59.23 I received error messages regarding dbus not being defined. I then updated to update-manager version 1:0.59.24 and was able to update to Gutsy without receiving any error messages.