[K12OSN] YUM Error

[Mike Kanfer]

I am trying to update a new install of Fedora 3.  When I rnu YUM -y
update, I receive an error that says..
 
Cannot find a valid baseurl for repo: base. 
 
This is a new install.  I have used these CD's on another machine and
update works fine.
 
Thanks for your help.