Label multiple disks for VxVM

Create format command-file: type, 0. Auto configure, quit.
# vi format.command
t
0
q

Select your disks and white a loop.
# for disk in $(vxdisk -qe -o alldgs list | awk '{if($5=="error"){print $6}}' | sed "s/s2$//") ; do format -d $disk -f format.command ; done

Enable remote XDMCP on RHEL5 & CentOS5

# vi /etc/gdm/custom.conf

[security]
AllowRemoteRoot=true

[xdmcp]
Enable=true

or gui

# gdmsetup

and

# gdm-restart

open udp port 177 on iptables