how to resolve scsi_wait_scan error invalid module format

make menuconfig to disable scsi async scan kernel config
make rpm -j 4
remove previous same kernel /lib/modules
install the new kernel rpm  to populate /lib/modules/2.6.32
run mkinitrd initramfs-2.6.32.img 2.6.32
cp initramfs-2.6.32 /boot
reboot