Updating xCAT
If at a later date you want to update xCAT on the Management Node, first, update the software repositories and then run:
yum clean metadata # or, yum clean all
yum update '*xCAT*'
# To check and update the packages provided by xcat-dep:
yum update '*xcat*'
If running in a hierarchical environment, Service Nodes must be the same xCAT version as the Management Node. To update Service Nodes: Diskless or Diskful