I've just installed Kubuntu 10.10 on my netbook and I'm getting this error too, none of the above fixes have worked.
-- Failed to fetch http://extras.ubuntu.com/ubuntu/dists/maverick/Release ; missing key https://bugs.launchpad.net/bugs/650525 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
