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Compile 2.6.7, 2.6.8,, 2.6.9, 2.6.10, Kernel w/module-init-tools

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.

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

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


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

which means its using grub.

Similar Articles : Compile 2.6.7, 2.6.8,, 2.6.9, 2.6.10, Kernel w/module-init-tools, Rkhunter Installation, Detect and Clean a hacked server T0rnkit Tutorial, How to install KISS Firewall, How to Disable Telnet, How to install mod_security for Apache, How to install BFD (Brute Force Detection), How to install APF (Advanced Policy Firewall), E-mail Alert on Root SSH Login, Mask Your Web Server for Enhanced Security, Guide to Chkrootkit - checking for intruders, Creating a Welcome message for SSH logins, Disable Direct Root Login, RootCheck - Root Check, Changing APF log for TDP/UDP drop's


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