From Chaos
| This article is part of the HOWTO series.
|
Summary
This article explains clearly and concisely how to build and install a 2.6 Linux Kernel.
Details
Obtain Source
1. Download the 2.6 kernel source from ftp://ftp.kernel.org.
2. Copy the file into /usr/src, and decompress it:
| root@localhost:~# cp linux-2.6.x.tar.gz /usr/src
|
| root@localhost:~# cd /usr/src
|
| root@localhost:/usr/src# tar -zxvf linux-2.6.x.tar.gz
|
1. By default, Slackware symlinks /usr/src/linux to /usr/src/linux-x.x.x, where linux-x.x.x is the kernel version the system shipped with. Remove this symlink, we will have more on this later:
| root@localhost:/usr/src# rm linux
|
2. The default (shipped version) of the kernel in Slackware has a bunch of modules enabled. To re-use this (if you just want a generic kernel), do the following:
| root@localhost:/usr/src# cp linux-x.x.x/.config linux-2.6.x/
|
| root@localhost:/usr/src# cd linux-2.6.x
|
| root@localhost:/usr/src/linux-2.6.x# make menuconfig
|
DO NOT change anything, simply save and exit the menu.
1. Run the following:
| root@localhost:/usr/src/linux-2.6.x# make bzImage && make modules && make modules_install
|
1. Once it is done building, you are safe to install the new kernel. Do the following, this prepares Lilo, so we can revert to the old kernel if needed.
| root@localhost:/usr/src/linux-2.6.x# cd /boot
|
| root@localhost:/boot# rm System.map
|
| root@localhost:/boot# rm vmlinuz
|
| root@localhost:/boot# rm config
|
| root@localhost:/boot# mv config-ide-x.x.x config-x.x.x
|
| root@localhost:/boot# mv vmlinuz-ide-x.x.x Linux-x.x.x
|
| root@localhost:/boot# mv System.map-ide-x.x.x System.map-x.x.x
|
| root@localhost:/boot# cp /usr/src/linux-2.6.x/arch/i386/boot/bzImage /boot/Linux-2.6.x
|
| root@localhost:/boot# cp /usr/src/linux-2.6.x/System.map /boot/System.map-2.6.x
|
| root@localhost:/boot# ln -s System.map-2.6.x System.map
|
Fix LILO
1. Now that everything is prepared, we need to modify our /etc/lilo.conf:
| root@localhost:/boot# vi /etc/lilo.conf
|
2. Change the default entry (for the older kernel) so it looks something like this:
# Linux-x.x.x
image = /boot/Linux-x.x.x
root = /dev/hdc1
label = Linux-x.x.x
read-only
3. And add a new entry, above the old kernel, for the new kernel:
# Linux-2.6.x
image = /boot/Linux-2.6.x
root = /dev/hdc1
label = Linux-2.6.x
read-only
4. Run lilo, so it's aware of the changes:
| root@localhost:/boot# lilo
|
5. Reboot!
References
