How To Upgrade a Linux Kernel

LinuxGuru707 · 07-19-2003, 12:24 AM

Im running Suse 8.2 Pro and I would like to know how to upgrade to kernel 2.4.21 from 2.4.20 step by step in the command line logged in as root.

zmedico · 07-19-2003, 12:29 AM

Welcome to LinuxQuestions.org,

There are some instructions for compiling the kernel in /usr/src/linux/README. Usually it's something like this:

Code:

su
cd /usr/src/linux
make xconfig
# edit Makefile (you can add a EXTRAVERSION indentifier)
make dep
make bzImage
make modules
make modules_install
# copy your kernel and set up boot loader

grym · 07-19-2003, 03:03 AM

zmedico's instructions are pretty good however if you are upgrading kernels make sure /usr/src/linux points to your new kernel source not the old source
# copy your kernel

cp arch/i386/boot/bzImage /boot/vmlinuz-2.4.21

#copy your System.map (optional)

cp System.map /boot/System.map-2.4.21

#you could also link both these to /boot/vmlinuz and /boot/System.map respectively

#edit bootloader

vim /etc/lilo.conf

#or if you use GRUB

vim /boot/grub/grub.conf

#if you use lilo don't forget to

/sbin/lilo

#after editing lilo.conf
#also if you didn't want to change your kernels configuration you could simply copy your .config file from your old kernel source to your new kernel source and do a

make oldconfig

#instead of having to go thru a make xconfig

good luck