[CentOS] Upgrading to 2.6.11

What would be the proper steps to upgrade to 2.6.11 on centos 4.0

This is what I think...

tar -zxvf linux-2.6.11.6.bz2 cd linux-2.6.11.6 make oldconfig - enter for all choies presented vi .config - change 8250_NR_UARTS to 36 to support 4 - 8 port rs232 cards make bzImage make modules_install mkinitrd /boot/initrd-2.6.11.6 2.6.1.6 cp -f arch/i386/boot/bzImage /boot/vmlinux-2.6.11.6 edit /etc/grub.conf

Is this the correct procedure?

Thanks,

Jerry