Compile 2.6.7 Kernel w/module-init-tools Published: Jul 08, 2004
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Wanted to try out the 2.6 edition kernel? Never knew how to do it? Well heres how! Includes everything from compiling the kernel to configuring your bootloader.

Compiling the kernel

Wanted to try out the 2.6 edition kernel? Never knew how to do it? Well heres how! Includes everything from compiling the kernel to configuring your bootloader.

Lets Begin!

cd /usr/src
wget -c http://kernel.org/pub/linux/kernel/v2.6/linux-2.6.7.tar.bz2
tar xvfj linux-2.6.7.tar.bz2
cd linux-2.6.7
make clean && make mrproper
make oldconfig  ( or make menuconfig )
make bzImage
make modules
make modules_install

( i prefer this method rather then just "make" )

If you get alot of errors about .ko modules when you run make modules_install you need to update your modutils package with module-init-tools, see below.

Now to copy the files over for the kernel itself.

cp .config /boot/config-2.6.7
cp arch/i386/boot/bzImage /boot/vmlinuz-2.6.7
cp System.map /boot/System.map-2.6.7
mkinitrd /boot/initrd-2.6.7.img 2.6.7

You may experience an error such as this:

/dev/mapper/control: open failed: No such file or directory

if you receive that error run the following commands:

rm -rf /boot/initrd-2.6.7.img
mkinitrd --omit-lvm-modules /boot/initrd-2.6.7.img 2.6.7

Now to add it to the grub / lilo configuration.

[Grub]

Your config will look something like this. Please note you need to follow the format for your current config.

title Red Hat Linux (2.6.7)
root (hd0,0)
kernel /vmlinuz-2.6.7 ro root=LABEL=/
initrd /initrd-2.6.7.img

Add your new entry to the top of the kernel list. Set the default to your working kernel. NOTE: the first kernel in the list is "0". (ex. default=1)

Now exit. Type "grub" at the bash prompt.

savedefault --default=0 --once

issue that at the grub prompt then use quit to exit. Once your reboot you need to go back in and set the default to the 2.6 kernel by setting default=0

[lilo]

Your config will look something like this. Please note you need to follow the format for your current config.

image=/boot/vmlinuz-2.6.7
label=2.6.7
append="root=LABEL=/"
read-only
initrd=/boot/initrd-2.6.7.img

Leave the default as is.

/sbin/lilo -v -v
/sbin/lilo -R 2.6.7

Once it reboots and comes back online you can change the default to be 2.6.7 and /sbin/lilo -v -v

The above tells you how to enable failsafe in your kernels. SO that if the box panics the dc tech does not have to console in he just has to reboot the box.

How to install module-init-tools:

cd /usr/src
wget -c
http://www.kernel.org/pub/linux/kernel/people/rusty/modules/module-init-tools-3.0.tar.gz
tar -zxvf module-init-tools-3.0.tar.gz
cd module-init-tools-3.0
./configure --prefix=""
make moveold
make install
./generate-modprobe.conf /etc/modprobe.conf

How to determine what boot loader you are using?

dd if=/dev/hda bs=512 count=1 2>&1 | grep GRUB
dd if=/dev/hda bs=512 count=1 2>&1 | grep LILO

one of them will kick back something like:

root@w00t [~]# dd if=/dev/hda bs=512 count=1 2>&1 | grep GRUB
Binary file (standard input) matches
root@w00t [~]#

which means its using grub.

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Comments (5)

  • Gravatar - r007
    r007 02:20, July 24, 2004
    <br />
    /boot/config-2.4.20-8:2130: trying to assign nonexistent symbol DEBUG_IOVIRT<br />
    /boot/config-2.4.20-8:2133: trying to assign nonexistent symbol DEBUG_BU<br />
    <br />
    I get tons of errors like that, any help?
  • Gravatar - Tom
    Tom 15:06, August 3, 2004
    Does this work on Fedora?
  • Gravatar - mohamed
    mohamed 05:52, October 9, 2004
    tom / i have install it on FC1 and it run :)
  • Gravatar - JLChafardet
    JLChafardet 01:31, November 4, 2004
    definatelly this isnt as easy at it seems, all that y m n ? drove me krazy, hope to do not crash my box LOL
  • Gravatar - fusion
    fusion 22:20, December 10, 2004
    i think if you press just enter it picks the best option

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