I did not try that. Machine is an email server and we had to get back on line quickly. Following Mary's advice, I did find one of the two RAID drives had failed. Unplugged that drive, but system would not boot. Ran Rescue from 7.6 disk and it appeared to update to 7.6 to the remaining drive, but still would not boot. Did a full install of 7.6 on the same drive and it installed properly and is running fine. I will now add another drive to the RAID.
Thanks to all for the help!
Brooks