Redhat AS server upgrade via Yum using CentOS repository?
I have a Redhat Advanced Server 4 on my system. It has not been upgraded for several months.
It would bring me much advantage to upgrade to the latest version. However, I don't have enough money to pay for the upgrade service of Redhat. Sometimes I wonder if I can upgrade by YUM using the repository of CentOS. If yes, how should I set the /etc/yum.conf file?
Many thanks to you!