mkdir build
cd build/
mkdir src
cd src/
wget -O - http://www.kernel.org/pub/linux/kernel/v2.6/testing/linux-2.6.19-rc4.tar.bz2 | tee linux-2.6.19-rc4.tar.bz2 | bunzip2 | tar -xf -
cd linux-2.6.19-rc4
cd /extra/build/src/linux-2.6.19-rc4
make menuconfig
mv .config .config.old
make menuconfig
cat /proc/config.gz | gunzip | less
find /proc | fgrep config
make menuconfig
make
make modules
make install
mkdir -p /lib/modules/2.6.19-rc4test
make install
ls /lib/modules/
make modules_install
vi /etc/grub.conf 
cd
shutdown -r now
uname -a
shutdown -r now