[CentOS] yum errors

Fri Nov 20 17:21:16 UTC 2015
Wes James <comptekki at me.com>

I have inherited centos 6.3 and 6.2 vms in an esxi environment.  When I do

yum provides ntpd

on the 6.3 box I get a lot of errors like:

Loaded plugins: fastestmirror, presto
Loading mirror speeds from cached hostfile
 * base: mirror.unl.edu
 * extras: mirrors.cmich.edu
 * updates: mirror.steadfast.net
http://mirror.unl.edu/centos/6.4/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 22 - "The requested URL returned error: 404"
Trying other mirror.
http://mirror.ash.fastserv.com/pub/linux/centos/6.4/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 22 - "The requested URL returned error: 404"

Trying other mirror.
http://mirrors.einstein.yu.edu/centos/6.4/updates/x86_64/repodata/repomd.xml: [Errno 12] Timeout on http://mirrors.einstein.yu.edu/centos/6.4/updates/x86_64/repodata/repomd.xml: (28, 'connect() timed out!')
Trying other mirror.
http://mirrors.versaweb.com/centos/6.4/updates/x86_64/repodata/repomd.xml: [Errno 12] Timeout on http://mirrors.versaweb.com/centos/6.4/updates/x86_64/repodata/repomd.xml: (28, 'connect() timed out!')
Trying other mirror.

Why am I getting these errors?  I installed 6.4 in virtualbox and the .repo files seem the same, except the 6.3 box didn’t have a fastback.repo file. 

Also why is it looking at 6.4 repos above?  When I see:

cat /etc/redhat-release 
CentOS release 6.3 (Final)

i.e., this box is 6.3. Shouldn’t it be looking for 6.3 repo info?

Thanks,

-wes