When updating a Debian based system (such as Ubuntu), it may happen
that apt-get will display an error message about public keys or GPG.
This is a new feature of apt-get that will guarantee the authenticity
of the apt servers. Those errors generally look like this:
W: GPG error: ftp://ftp.debian.org/ testing Release:
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 9AA38DCD55BE302B
W: There is no public key available for the following key IDs:
This is easily fixable, despite what you may find on the rest of the
internet. It's caused by a faulty public key; it's probably just
Fix it by entering these two commands, remember to replace the keys
below (9AA38DCD55BE302B) with the key in your system's error message.
gpg --keyserver pgpkeys.mit.edu --recv-key 9AA38DCD55BE302B
gpg -a --export 9AA38DCD55BE302B | sudo apt-key add -
lala on Saturday 30-04-2011
lol k, thats good