+-------------------------------------------------+
| Vanilla Stock Kernel compilation                |
| (tested on Debian Woody)                        |
|                                                 |
| Tutorial by Philip Iezzi <pipo at iezzi dot ch> |
| changed on 2003-12-09                           |
|            2003-01-06                           |
|            2004-03-05                           |
+-------------------------------------------------+

notes: 2.4.xx stands for the new kernel
       2.4.yy stands for the old running kernel


packages you definitely need:
------------------------------
libncurses5-dev



1) get kernel, unzip sources in /usr/src
----------------------------------------
Get the full package from kernel.org, where it says "F":

$> wget http://www.kernel.org/pub/linux/kernel/v2.4/linux-2.4.xx.tar.bz2

$> tar -jxf linux-2.4.xx.tar.bz2
(or, if you like it more complex:)
$> bzip2 -cd linux-2.4.xx.tar.bz2 | tar xf -


2) symbolic link in /usr/src
----------------------------
$> ln -s linux-2.4.xx linux.vanilla # only if e.g. ac-patch requires this!
$> ln -s linux-2.4.xx linux


3) [optional] apply kernel patches
----------------------------------
e.g.:
$> patch -p0 <grsecurity-1.9.7-2.4.19.patch

Check /usr/src/linux/Makefile, if patch has been applied, e.g. ac2-patch for 2.4.20:
VERSION = 2
PATCHLEVEL = 4
SUBLEVEL = 20
EXTRAVERSION = -ac2
 


5) Configuration
----------------
$> cd /usr/src/linux
$> make menuconfig
(make xconfig)


Load the current configuration from /boot/config-2.4.yy
("Load an alternate configuration file")
Change some settings, if required, e.g.:
 - APM-support
 - grsecurity level (only avail. if patched by grsecurity)
 - quota-support
 - loopback device
 - ext3
 - ...

$> diff /boot/config-2.4.yy /usr/src/linux/.config
edit .config by hand, if you miss something, e.g.:

< # CONFIG_BLK_DEV_ATARAID is not set
< # CONFIG_BLK_DEV_ATARAID_PDC is not set
< # CONFIG_BLK_DEV_ATARAID_HPT is not set
---
> CONFIG_BLK_DEV_ATARAID=y
> CONFIG_BLK_DEV_ATARAID_PDC=y
> CONFIG_BLK_DEV_ATARAID_HPT=y




6) Compilation
--------------
cd /usr/src/linux

$> make dep
$> make clean
$> make bzImage
$> make modules
$> make modules_install

or, alltogether (in background with stdout/stderr output logging):
--------------
$> make dep clean bzImage modules modules_install > COMPILE_OUTP_2.4.xx 2>&1 &


$> cp -a ./arch/i386/boot/bzImage /boot/vmlinuz-2.4.xx
$> cp -a System.map /boot/System.map-2.4.xx




	
7) LILO
-------

If you use a separate partition for /boot, better use your own symlinks inside /boot instead of the default one's in /
sample configuration...

---------------------------------
/etc/lilo.conf
---------------------------------
default=Linux

image=/boot/vmlinuz
        label=Linux
        read-only

image=/boot/vmlinuz.old
        label=LinuxOLD
        read-only
        optional

image=/boot/vmlinuz.test
        label=LinuxTEST
        read-only
        optional
---------------------------------


$> cd /boot
$> rm vmlinuz.old
$> ln -s vmlinuz-2.4.yy vmlinuz.old
$> rm vmlinuz.test
$> ln -s vmlinuz-2.4.xx vmlinuz.test
(currently keep the link vmlinuz->vmlinuz-2.4.yy)

To test the kernel, first run:


$> lilo
$> lilo -R LinuxTEST
$> reboot


Then test it for a week or so and finally set it as default kernel:


$> cd /boot
$> rm vmlinuz
$> ln -s vmlinuz-2.4.xx vmlinuz
$> lilo
$> reboot


if you don't believe anything is new...

$> uname -a

We're all done! Get a beer and relax... And wait for the next kernel panic! :)

----------------------------------------------------------
---------------------   DONE!   --------------------------
----------------------------------------------------------














additional information:


----------------------------------------------------------
GRSECURITY PATCH
http://www.grsecurity.net/
----------------------------------------------------------

----------------------------------------------------------
wrong/missing modules --> recompile
----------------------------------------------------------
make menuconfig
make modules
make modules_install
modconf (--> load module)

----------------------------------------------------------
messed up modules, versions (unresolved symbol errors)
http://msgs.securepoint.com/cgi-bin/get/netfilter-0203/315/1.html
----------------------------------------------------------
edit Makefile and set EXTRAVERSION = ...
mv .config .. (<- move avay .config as this gets deleted with make mrproper)
make mrproper
mv ../.config .
make oldconfig
[make dep clean ...]


----------------------------------------------------------
Von:news user (news@sisyphus.news.be.easynet.net)
Betrifft:Re: kernel 2.4 debian woddy 3.0 
Newsgroups:fr.comp.os.linux.configuration
View: Complete Thread (4 articles)
Datum:2002-09-01 10:01:03 PST
----------------------------------------------------------
apt-get install kernel-source-2.4.19 libncurses5-dev
cd /usr/src
bunzip kernel-source-2.4.19.bz2
tar xvf kernel-source-2.4.19.tar
cd /usr/src/kernel-source-2.4.19
make menuconfig
*la tu config ton noyau, tu quittes et tu sauves*
make dep clean bzImage modules modules_install
cp /usr/src/kernel-source-2.4.19/arch/i386/boot/bzimage /boot/vmlinuz-2.4.19
cp /usr/src/kernel-source-2.4.19/System.map /boot/System.map-2.4.19
rm /vmlinuz
ln -s /boot/vmlinuz-2.4.19 vmlinuz
vi /etc/lilo.conf
*tu fais les modifications nécessaires dans ce fichiern, tu quittes et tu
sauves *
lilo

et voila :)

Debian propose aussi un utilitaire très pratique mais que je n'aime pas
trop : make-kpkg qui fait un .deb de ton kernel et qu'ensuite il faut
installe avec dpkg -i kernel-REVISION.deb.
Voire man make-kpkg à ce sujet ...