CORRECT TEXT
Upgrading the kernel as 2.6.36.7.1, and configure the system to Start the default kernel, keep the old kernel
available.

A.
# cat /etc/grub.conf

B.
# get dr/dom/kernel-xxxx.rpm

C.
# vim /etc/grub.conf

D.
# rpm -ivh kernel-xxxx.rpm

Explanation:
# cat /etc/grub.conf
# cd /boot
# lftp it
# get dr/dom/kernel-xxxx.rpm
# rpm -ivh kernel-xxxx.rpm
# vim /etc/grub.conf
default=0