yum not showing any updates

[Gerry Tool]

I just returned to my FC6T1 system after many days of ignoring it.  When
I do a yum update, I get:

[root at fc6t1 ~]# yum update
Loading "installonlyn" plugin
Setting up Update Process
Setting up repositories
Reading repository metadata in from local files
No Packages marked for Update/Obsoletion

My version of fedora-release is 
[root at fc6t1 ~]# rpm -q fedora-release
fedora-release-5.90-3

Is my repository information borked, and if so, how can I fix it?

Thanks.

Gerry Tool