F8 yum update problem

[Louis E Garcia II]

=============================================================================
 Package                 Arch       Version          Repository
Size 
=============================================================================
Updating:
 yum                     noarch     3.2.8-2.fc8      updates
509 k

Transaction Summary
=============================================================================
Install      0 Package(s)         
Update       1 Package(s)         
Remove       0 Package(s)         

Total download size: 509 k
Is this ok [y/N]: y
Downloading Packages:
(1/1): yum-3.2.8-2.fc8.no 100% |=========================| 509 kB
00:03     
warning: rpmts_HdrFromFdno: Header V3 DSA signature: NOKEY, key ID
30c9ecf8


Public key for yum-3.2.8-2.fc8.noarch.rpm is not installed