Hello, I need to upgrade a Xen cluster using RH servers from 5.3 to 5.4. It is a 3 nodes cluster (+qdisk) and 1 luci server for management. All VM are in a GFS2 FS in /home/domU/FQDN folders. Each FQDN folder contains : -The xen config file -the VM FQDN.img file I read about some issues with rgmanager from 5.4 (unable to create VM config files that were not in /etc/xen). This bug has been fixed in rgmanager-2.0.52-1.el5_4.1 Can I safely apply the update without modifying any config made with 5.3 ? Do I need to tweak the cluster.conf between 5.3 and 5.4 ? Also, Is it better to upgrade the luci server before the nodes ? I am also curious about the nodes, what is the best practice : moving VM , removing the node from the cluster, upgrading and then reboot, see if everything is fine and go for the next one after that ? Can I stay with a mix of 5.3 and 5.4 for several days ? Regards, F -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster