>I am trying to install CentOS 5.6 on HP DL 180 G6 which has HP Smart >Array B110i SATA RAID Controller Driver. I have 4 * 500 GB SATA HDD >and configured RAID 1+0 using System BIOS, the BIOS detects usable >disk space as 940GB disk space, when i start installing the OS, it >does not detect HP Smart Array B110i SATA RAID Controller Driver That thing is a software raid setup iirc, although there is an rpm for it post install, you could use the ddkit from rhel to make a dd image but frankly I would just use mdraid, turn off the riad setup and just use AHCI.