I started out by updating my kernel source from kernel-source-2.4.21-0.13mdk.i586.rpm to kernel-source-2.4.21-0.25mdk.i586.rpm by means of Mandrake update.

I now logged in as root then in a terminal

step 1 - "cd /usr/src/linux"

step 2 - "make xconfig" (Here under processor type and features I changed processor family to Athlon/Duron/K7 and saved)

step 3 - "make dep"

step 4 - "make bzImage"

step 5 - "make modules"

step 6 - "make modules_install"

step 7 - "make install"

step 8 - "lilo"

you may need to install some packages to build you new kernel