[CentOS] Updating Kernel with Up2date

Hi,

I have installed Centos 4.3 64bit with Kernel 2.6.9-34 using a driver disk for 3ware raid controller. I had partitioned this raid disk with Parted, and made ext3 file system on it. mounted and updated in /etc/fstab. It automatically mounts when I reboot the machine. Now when I do an up2date and update the kernel to 2.6.9-34-0.2 the system doesn't recognize the raid disk. I have checked the /lib/modules/2.6.9-34.0.2.ELsmp/kernel/drivers/scsi folder and found the files 3w.9xxx.ko and 3w.xxxx.ko. But when the system boots with the new kernel it doesn't detect the 3 ware Raid disk.

Any idea why this could happen. ?

Thanks

Rajeev R Veedu