Mylex AcceleRaid 170

I managed to get the job done. The problem is that the installer does not know enough to add the modules necessary for your hardware to the initrd.img. So you have to build a new initrd.img with the additional modules.

Here are the steps (from memory):

1. Use your install CD to boot into rescue mode (insert CD and type "rescue" at the Boot: prompt).

2. mkdir /target; mount /dev/ida/c0d0p1 /target (or whatever is your root partition. NB I did not have to provide any options. I did not have my partition map handy so I just mounted every partition on an empty dir and viewed the contents to figure out what was in each partition.)

3. If you created separate boot and usr partitions, mount the partitions on /target/boot and /target/usr (you are recreating the required tree under /target). You don't need any other partitions.

4. chroot /target (now it looks like you are in your installation).

5. add cpqarray to /etc/modules (nano /etc/modules and add "cpqarray" as the last line).

5. /usr/sbin/mkinitramfs -o /boot/initrd.img /lib/modules/2.6.12-9-686/ (this will build the new initrd.img in /boot).

6. Cd to /boot and verify that you are happy (I just ensured the new img was larger than the old one). Then backup the old img and rename the new img to the same name as the old img (initrd.img-2.6.12-9-686 for me).

7. Reboot. Everything went smoothly after that.

http://ubuntuforums.org/showthread.php?t=82466&highlight=Mylex

Adaptec AIC-7899 Ultra 160/m SCSI Mylex AcceleRaid 170 Disk Array Controller