root: # apt-get update
Get:1
http://security.debian.org sarge/updates Release.gpg [197B]
Get:2
http://security.debian.org testing/updates Release.gpg [197B]
Ign
http://www.calno.com unstable Release.gpg
.
.
.
.
.
.
Hit
http://non-us.debian.org sarge/non-US/contrib Packages
Hit
http://non-us.debian.org sarge/non-US/non-free Packages
Fetched 194B in 14s (14B/s)
Reading package lists... Done
W: GPG error:
http://www.os-works.com testing Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY CF455A0A8AC2C0A6
W: You may want to run apt-get update to correct these problems
WELL ~~ LET'S GOOGLE
THE ANSWER AS FOLLOWING:
root: # gpg --keyserver
wwwkeys.eu.pgp.net --recv-keys CF455A0A8AC2C0A6
root: # gpg --armor --export CF455A0A8AC2C0A6 | apt-key add -
root: # apt-get update
It's done!! ^^
