I copied the /opt/splunk directory before upgrading to 6.0. Now I find that none of the forwarders work. They are not forwarding the transactions to 6.0. We don't have the time to send the 6.0 forwarder to the laptops to see if they will work, so we need to restore. What is the procedure? Just delete the /opt/splunk 6.0 structure and copy back the old 5.x structure to /opt/splunk?