Daniel Lewis - 2012-10-15

I'm running CentOS 6.3 and I wanted to convert my single drive Linux system to raid 1. I installed the program as instructed. Turned off the machine. Connected the new drive and when I ran raider -R1 I got the message FATAL ERROR: /dev/sda is not the system disk!

sda has to be my system disk because the other disk is unformated. It is partitioned as sda1 (boot) and then sda2 (which has my data on it.

How can I solve this problem?

Thanks in Advance! Dan