Set the bios in legacy mode as the RedHat 9 install disk won't recognize the Enhanced setting and will fail to see the drives. Under the legacy setting choose the last option. It will install seeing the drives as normal IDE drives with a slow transfer rate.
Download the latest Kernel RPM on a different machine (as your LAN won't work as of yet) and transfer over via CD ROM. Build a new Kernel being sure to turn on the PIXII and Intel gig a bit options in menuconfig.
Once the Kernel is made you will want to add a new stanza to grub.conf as below --
title Red Hat Linux (2.4.20-20.9kps1 hdc)
kernel /vmlinuz-2.4.20-20.9kps1 ro root=/dev/md2 hdc=ide-scsi
Note on the line that starts kernel -- you will now point to hdc (don't ask me why??)
You will also need to edit /etc/raidtab or fstab to change to the new drive letters which are hde and hdg
Reboot and in the BIOS setup change to 'enhanced' mode. Go to the boot selection and delete the hard drives for boot -save and reset the computer with the reset button enter the boot section and reselect the drives (this gets around a bug in the BIOS).
Once the machine boots up you need to delete /boot/grub/device.map and run grub --devicemap=device.map
Check /proc/mdstat - you may need to raidhotadd and rebuild your raid.
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