Hi, I'm trying to install a HA cluster + CONGA using 2 nodes with RH Linux 5.7. I installed luci and ricci on both nodes with no issues but when starting cman, I get the following error "FATAL: Module lock_dlm not found". I looked in /etc/init.d/cman script and the line that seems to be causing the error to be fired is in the function load_modules. Here is the line: errmsg=$( /sbin/modprobe lock_dlm 2>&1 ) || return 1. Any help will be greatly appreciated. best regards,