Getting the kernel source[]
To compile a kernel, you will need the kernel source code. You can get it from http://www.kernel.org.
Simple method[]
First, configure the kernel, type:
make menuconfig
compile[]
Next, compile the kernel, type:
make make modules make modules_install make install
Verify grub boot loader[]
Update /boot/grub.conf file and make sure it is configured to boot just compiler kernel.