[CentOS] Centos 5.1 distro: How to upgrade 5.0 to 5.1 with yum??

[Les Mikesell]

William L. Maltby wrote:
> 
> To the OP: with 500+ machines(?), would you benefit from having a local
> repo that you could manage to be sure that all your nodes "sing from the
> same sheet of music"? The lists have advice on this if you need it.

With Centos 3.x you could easily pull things through a caching proxy by 
setting http_proxy in the environment from the command like:
http_proxy=myproxy.mydomain.com yum update.
and any number of machines at a location would only have to download a 
needed file once (assuming your proxy is configured to cache large 
files).  However, newer releases use a mirrorlist approach that makes 
each machine pick a different url, defeating the caching.  I thought I 
saw something about 5.x having a way to restore the old way without 
being tied to a single repository, but I've forgotten it now.

-- 
   Les Mikesell
    lesmikesell at gmail.com