On 11/26/2015 10:18 AM, Tris Hoar wrote:
To access RHN you will need a support agreement with Red Hat. You could use the packages from Centos, but it would be better to just rebuild the server if you are going down that route.
long ago, far away, I successfully converted several RHEL boxes to CentOS by making a list of all the RPMs and replacing them with the centos equivalents, after removing the RHN related packages and manually installing the CentOS equivalents. But I think it was RHEL 3 or 4 when I last did this.