Hello,
I used to know how to do this but seem to have forgotten. When I do an aptitude update I get this:
W: GPG error:
http://www.debian-multimedia.org etch Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 07DC563D1F41B907
I seem to remember adding the key to a local file but don't quite remember...
I went online but didn't find the help I need. Can someone please jog my memory?
Many Thanks,
ab