I get the following error message when trying a network upgrade from 10.04 to 10.10:
authentication failed. authenticating the upgrade failed. there may be a problem with the network or with the server
I googled that error and found one proposed solution:
gpg --keyserver keyserver.ubuntu.com --recv 437D05B5 gpg --export --armor 437D05B5 | apt-key add -
However, this seems to have screwed up at least one guy's system.
Is there any safer way of solving this (besides doing a fresh install)?