How can I mount a GFS partition at bootup time?
Put it in /etc/fstab. During startup, the “service gfs start” script (/etc/rc.d/init.d/gfs) gets called by init. The script checks /etc/fstab to see if there are any gfs file systems to be mounted. If so, it loads the gfs device driver and appropriate locking module, assuming the rest of the cluster infrastructure has been started.
