Comment 14 for bug 881548

I tested the patch now and it turns out that there is a typo in it.

Once that got fixed it works for me for:
natty->oneiric: yes
maverick->natty: yes
lucid->maverick: yes (attached patch has a trivial conflict though)

what I did was to get the natty/maverick/lucid update-notitifer, patch it, build it, insert a cdrom and verify that the update-notifier would patch the upgrader before it executes it.