Debian: NO PUBKEY available
Do you ever got something like:
The following sign atures couldn't be verified because the public
key is not available: NO_PUBKEY F 13201A6000B83703
This really sucks, if you don’t know how to solve this…
Here is a simple HOWTO, which worked perfect for me:
aptitude install debian-archive-keyring
aptitude update
You will answer two questions, the first with y the second one with Yes.
(Thanks to Tuxhausen-Blog)