Debian Key Expired and FIX

[apmuthu]

I just did an apt-get update and got:

http://security.debian.org lenny/updates Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY AED4B06F473041FA

Ref: http://www.pangdu.com/2011/02/w-gpg-error-apt-get-update-nopubkey.html

FIX:

aptitude install debian-archive-keyring