HowtoMatrix

I have some shocking news: despite the astonishing
growth of Linux, there is a whole new generation of Linux users who
have never, ever compiled a kernel. How to account for this sad state
of affairs? Perhaps it’s because the distribution maintainers are
doing such fine jobs it’s not necessary. Maybe users just don’t know
that they can. Whatever the reasons, today we’re taking a tour of some
of the different ways to customize the Linux kernel. First we’ll learn
the old reliable generic way, and then take a tour of the Fedora Way
and the Debian Way of customizing kernels.

A word of warning: while building a custom kernel isn’t all that
difficult, it is complex and time-consuming, and when you’re all
finished you might be the proud parent of a non-booting kernel. The
good news is you can have as many do-overs as you want without hurting
your system. Any Linux system can have any number of kernels and you
can choose which one to boot to, so never delete old kernels until
you’re certain your new one works correctly. Your system will not try
to boot to a new kernel until you explicitly configure it to do so, so
it can’t sneak up on you. So you can go on a wild spree and build and
test a whole army of new kernels if you like.

Read more at LinuxPlanet