I was wondering if CentOS 5.4 was officially support by InterWorx. What is the supported upgrade path? Can a simple yum upgrade be run as recommend on the CentOS website?
CentOS 5.4 is fully supported and using the recommended upgrade path should work fine. Are you upgrading from a previous version of CentOS 5 or are you trying to upgrade from CentOS 4?
I would be upgrading from CentOS 5.3.
That should work fine. When CentOS 5.4 was released, I updated it on two of my personal servers (running InterWorx) and they both updated without issue.
Running CentOS 5.4
used yum upgrade when it was first released, did not have any problems