Beier,

This may help: http://daily-hacking.blogspot.com/2009/06/nopubkey-during-apt-get-update.html

(Also: It would be a good idea to add this to the wiki.)

Regards,
Hernan.


From: Beier Cai <beiercai@gmail.com>
To: cassandra-user@incubator.apache.org
Date: 03/03/2010 07:26 AM
Subject: Error installing Cassandra from package on Ubuntu





I'm trying to install Cassandra from package on Ubuntu8.04 based on the info from following page:

http://wiki.apache.org/cassandra/DebianPackaging

I added the two memtioned sources to /etc/apt/sources.list, did an apt-get update, but got the following error

W: GPG error: http://www.apache.org unstable Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY F758CE318D77295D
W: You may want to run apt-get update to correct these problems

any idea?