Compiling Kernel - steps/procedure

[Jagadesh]

Kindly tell me what is the exact procedure for compiling the kernel in Redhat.

Thanks
Jagadesh

[Mark Grant]

Ok, I cant do this red hat specific because I haven't used red hat since 4.2 and it has changed a lot since then. I believe red hat make all their own mods but this is the procedure. I'll also assume you know which kernel options you want because that means you can get to use a GUI

cd /usr/src/linux (or wherever the red hat source is)

export DISPLAY=:0

make xconfig

enable all the things you want enabled

save and exit

make dep

make bzImage

make modules

make modules_install

cp /boot/vmlinuz /boot/vmlinuz.prev (you may need to adjust this name for red hat)

cp /boot/system.map /boot/system.map.prev

cp System.map /boot

cp arch/i386/boot/bzImage /boot/vmlinuz

edit /etc/lilo.conf or grub.conf

add an entry for booting vmlinuz.prev and your new kernel

run lilo (if using it)

cross fingers

re-boot.

If you want to keep all your existing configurations instead of starting from scratch then instean of "make xconfig" do a "make oldconfig" It's not very pretty but defaults to your exisiting config.

[Sergejs Svitnevs]

Check out the official RedHat document:

http://www.europe.redhat.com/documentation/HOWTO/Kernel-HOWTO-2.php3

Regards,
Sergejs

[Martin P.J. Zinser]

Also the README that comes with the Kernel sources pretty much spells out the process for you.

[K.C. Chan]

cd /src

make menuconfig
save the config
make bzImage
make modules
make modules_install
mv kernel to /boot/
edit grub.conf
reboot