Who Someone run "root.sh" on second node and get this error:
> Failure at final check of Oracle CRS stack. 10
that is the problem about Firewall or some securities.
With Linux/Unix OS, that should check IPTABLES or Packet Filter.
and make sure on every nodes of Cluster , that can communicate on Public IP (TCP) and Private IP (UDP) with every nodes.
> iptables -L