You need to load the ITE8213 ATA driver as well. Below is the procedure to install the RedHat 5.x to X7SBi:

1. Configured the RAID with the Adaptec codebase for installing Linux.

2. Download the ICH9R RAID driver (https://www.supermicro.com/wdl/driver/SATA/Adaptec_ICH9R/Linux/17716/) & IDE driver (https://www.supermicro.com/wdl/driver/ATA/ITE/IT8213F/Linux/). Copy the RAID driver & the .img files into a USB flash drive.

3. Plug the USB flash drive into the server.

4. Boot up from the IDE DVD-ROM. At the Linux prompt, type in "linux dd" to proceed.

5. Load the RAID driver from USB flash drive sda (/dev/sda1), and then continue.

6. Choose the "Local CD-ROM" as the installation media. The following message will show:

"Unable to find any devices of the type needed for this installation type..."

7. Select "Use a driver disk" & load the IDE driver it8213_xxxx.img from sda (/dev/sda1) again. (Note: it could be /dev/sdb.)

8. The message above will show again. Go with option "Manual Choose" this time. Scroll & find "ITE IT8213 IDE Controller" to use.

After that, it's just like a regular Redhat Linux installation.