I have had this same error with a clean install of 10.10 plus similar repro additions as above.
from http://ubuntuforums.org/showthread.php?t=1632093 I got:- sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys DB141E2302FDF932 which worked for me but am unsure if this is a safe fix. Please comment if you can confirm the correctness of the above. -- W: A error occurred during the signature verification https://bugs.launchpad.net/bugs/681634 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
