<html> Hello They sent off a linux machine (installed with some software) to a customer. Normally, when we install Linux (Cent OS 4.5) we do software Raid Level 1 during the installation (/dev/sda and /dev/sdb). This machine went out without them doing it. The machine that went out should already a /dev/sda and /dev/sdb (anyway to verify, if /dev/sdb is not mounted?) and we need to perform Raid 1 on it, but we can't reinstall Linux on it because it will overwrite evrything that is there. Is there anyway to Raid a machine that already has linux installed on it without reinstalling Linux over it? Thanks </html>