Thread: Verifying kernel download with gpg

i not sure why getting warning key not certified trusted signature.

code:

hopchewer:/home/hopchewer/downloads# gpg --verify linux-2.6.32.3.tar.bz2.sign linux-2.6.32.3.tar.bz2  gpg: signature made wed 06 jan 2010 06:45:39 pm est using dsa key id 517d0f0e  gpg: signature "linux kernel archives verification key <ftpadmin@kernel.org>"  gpg: warning: key not certified trusted signature!  gpg:          there no indication signature belongs owner.  primary key fingerprint: c75d c40a 11d7 af88 9981  ed5b c86b a06a 517d 0f0e

i imported key prior verifying:

code:

hopchewer:/home/hopchewer/downloads# gpg --keyserver wwwkeys.pgp.net --recv-keys 0x517d0f0e  gpg: requesting key 517d0f0e hkp server wwwkeys.pgp.net  gpg: key 517d0f0e: "linux kernel archives verification key <ftpadmin@kernel.org>" not changed  gpg: total number processed: 1  gpg:              unchanged: 1

i following guide http://www.kernel.org/signature.html .
key outdated?

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