[ydl-gen] headers not there

[Kevin McMahon]

yum install comes back with this
yum install
Gathering header information file(s) from server(s)
Server: Yellow Dog Linux 4.0 Base
retrygrab() failed for:
  
http://ftp.yellowdoglinux.com/pub/yellowdog/yum/4.0/base/headers/header.info
  Executing failover method
failover: out of servers to try
Error getting file 
http://ftp.yellowdoglinux.com/pub/yellowdog/yum/4.0/base/headers/header.info
[Errno 4] IOError: HTTP Error 404: Not Found