[root@penguin2 root]# yum update
Gathering header information file(s) from server(s)
Server: Fedora Linux / stable for Red Hat Linux 9 (i386)
Server: Macromedia Flash Player for Red Hat Linux 9
Server: Red Hat Linux 9 (i386)
Server: Red Hat Linux 9 (i386) updates
Finding updated packages
Downloading needed headers
Resolving dependencies
Dependencies resolved
I will do the following:
[update: gkrellm 2.1.19-0.fdr.1.rh90.i386]
[update: dia 1:0.91-0.fdr.5.i386]
[update: cvs 1.11.2-23.legacy.i386]
[update: mailman 3:2.1.1-7.legacy.i386]
[update: perl-DateManip 5.42-0.fdr.2.a.rh90.noarch]
[update: xchat 1:2.0.4-0.fdr.1.rh90.i386]
[update: nmap 2:3.30-0.fdr.1.rh90.i386]
[update: sysklogd 1.4.1-14.legacy.9.i386]
[update: nmap-frontend 2:3.30-0.fdr.1.rh90.i386]
Is this ok [y/N]: y
Getting gkrellm-2.1.19-0.fdr.1.rh90.i386.rpm
warning: rpmts_HdrFromFdno: V3 DSA signature: NOKEY, key ID 8df56d05
Error: Could not find the GPG Key necessary to validate pkg
/var/cache/yum/fedora-stable/packages/gkrellm-2.1.19-0.fdr.1.rh90.i386.rpm
Error: You may want to run yum clean or remove the file:
/var/cache/yum/fedora-stable/packages/gkrellm-2.1.19-0.fdr.1.rh90.i386.rpm
Error: You may also check that you have the correct GPG keys installed