Auto Kernel Compile and Install Script v0.7 for Linux

NOTE: UPDATED TO V0.7.0

Here , i present the optimized Hari's Auto Kernel Compile and Install Script  v0.6
It is a One click installer for installing linux kernel , the linux kernel compilation is a tedious process , now with this utility users can compile and install any downloaded kernel easily,

Q1).What this Auto Kernel Compile and Install Script does ?

Well , this script  helps in
a. Compiling and installing a latest linux kernel  released from kernel.org

b.It helps users to customize/optimize the linux kernel according to one's specifications - ( for eg. If you have  a amd processor and want to enable more processor specific functionalities to be integrated with kernel , you can  add/change such low level functionality here.

c.Once you saved your modifications to the kernel  this script will automatically  perform routines for  compiling the kernel to adding to grub bootloader. - the next boot you will be using the own customized/optimized OS.!!!   :-)


Q2).Where to get latest linux kernels?

Download  latest kernel from kernel.org



Steps to Run this script:

1. create a directory in desktop (or any place where you have read write privileges)

2. Download Auto Kernel Compile and Install Script  v0.7 for Linux  from here and extract it

[if you cant access ziddu.com due to any firewall restrictions , then i have given the entire shell script at the bottom of this post , copy and paste it and save it to a file with "sh" extension ]

 3.Download  latest kernel from kernel.org

4. Place both the files in same directory and goto terminal


5. In Terminal ,  do the following

                       cd  <directory that contains those 2 files>
                      sh    kernel_install_by_hari_v0.6.0.sh

6. Follow the instructions from there on.

NOTE: DONT FORGET TO SAVE YOUR KERNEL CONFIGURATION , AFTER SAVING

CLICK ON EXIT.

CLICK SAVE AND THEN EXIT.

I am also enclosing the Script file here( for quick copy paste ) , copy and paste it to a text editor and save it as file with .sh extension.

the shell script is as follows:

latest version currently pasted is 0.7:

#!/bin/sh
# Shell script for One Click Kernel Compile and Installation
# Programmed by Hari prasad B
# Copyright (C) 2011, Hari prasad <hari.hosting@gmail.com>
#
# NOTE:
# THIS SCRIPT WILL ONLY WORK WHEN apt-get IS THERE , IF IT IS NOT THERE please install it and then start this script.
# Tested on UBUNTU,FEDORA

#HOW TO RUN THIS
# step 1:  Dowmload the latest stable kernel version from kernel.org in and copy to any directory. 
# step 2: place this script to that directory and run it...

# eg. sh kernel_install_by_hari.sh   


# thats all! :-)  ... do look at the code to understand,,,


#NOTE: IF YOU ARE COMPILING THIS FOR SECOND TIME ... UNCOMMENT MAKE CLEAN COMMAND

HOME_URL=http://pcideas.blogspot.com
HOME_MAIL=hari.hosting@gmail.com

clear
echo "                    Auto Kernel Compile and Install"
echo "                    ================================="
echo
echo "This program will compile and install a new kernel in your system"
echo "This program will need apt-get to work properly, if it is not present it will be downloaded automatically , so You need a Internet connection  for this program to work correctly..."
echo
echo  "Programmed by Hari prasad  ($HOME_MAIL) "
echo "for updates visit my blog @  $HOME_URL"
echo
echo
echo
echo  Starting Auto Kernel Compile and Install...
echo
echo
echo
ls linux-*.bz2
k_found=$(eval ls linux-*.bz2 | wc -l)

echo "found the above $k_found kernels"
echo
if  [ $k_found  -eq  0  ]
then
echo "No kernels found.... both the kernel file  and this script will have to be in the same directory..."
echo
echo "for eg. "
echo " if you have downloaded kernel file linux-2.6.39.1.tar.bz2 , then make sure you have linux-2.6.39.1.tar.bz2 and kernel_install_by_hari.sh (this script) in the same directory "
echo
echo exiting now...
exit
fi   

#find and choose the kernel with latest version
k0=$( ls linux-*.bz2  | sort | tail -1)
echo " i have found latest kernel version file as $k0"
echo
echo "Enter which kernel version number to compile and install ? "
echo
echo "for eg. if you have downloaded linux-2.6.39.1.tar.bz2 then your version number is 2.6.39.1 , then enter 2.6.39.1 below "
echo
echo " Enter kernel version number only ?  "
read k
echo
echo

n=$( cat /proc/cpuinfo | grep processor | wc -l )

echo "I found number of processors \(including virtual cores\) your computer has to be $n"
echo

# p =no of proc + 1 // i read it from one site... it's recommended to put one more than how many processors you have. For example: on a dual core machine you could compile the kernel with make -j3.

p=`expr $n +  1 `


echo
echo
echo  "Checking Dependencies...."
echo "I will try to download and install packages that are necessary for compilation but not installed.."
echo
echo Enter password to go into supervisor mode...
sudo apt-get install libqt4-dev
echo
echo



echo
echo check dependencies and install them if not already there...
sudo apt-get install fakeroot build-essential crash kexec-tools makedumpfile kernel-wedge
sudo apt-get build-dep linux
#sudo apt-get install git-core libncurses5 libncurses5-dev libelf-dev asciidoc binutils-dev


sudo apt-get install fakeroot build-essential
sudo apt-get install crash kexec-tools makedumpfile kernel-wedge
sudo apt-get build-dep linux-image-$(uname -r)
sudo apt-get install git libncurses5 libncurses5-dev libnewt-dev

sudo apt-get install build-essential
sudo apt-get install linux-headers-`uname -r`



#start extraction process in back ground...
#to go into supervisor mode,,,
sudo ls
VER=$k
cur=$(eval pwd)
tar -xjvf linux-$VER.tar.bz2


#now linux-2.6.38.2 directory will get created..
cd linux-$VER

#HOW TO CONFIGURE KERNEL .... READ THE OPTION DESCRIPTORS AND CONFIGURE KERNEL...AND SAVE .CONFIG FILE IN DEFAULT DIRECTORY ITSELF
#lets configure the kernel...

echo
echo
echo " the next command wont work , unless you have  QT4 or QT3 library installed... if not install it..  "


#now to copy your previous latest configuration from your kernel list
con_file=$(ls /boot/config-* | sort | tail -1)
sudo cp  $con_file .config



#now to run graphical configurator...
make xconfig

echo

echo "if you had seen a graphical menu earlier then qt3 or qt4 was installed... if you have not seen the graphical menu then  press ctrl+c to exit and install qt4...."
echo "you cab run   \" sudo apt-get install libqt4-dev to install qt4.... ,you need to be online to download QT4...\"   "
echo
echo
echo "press Enter to continue"
echo



read a



#uncomment this line if you are running kernel compilation again...
#make clean


echo This step will take a long time.. based on your configuration options...


#now compile... takes a long time...
make -j$p



# ’make modules’ will built the various components which we chose to build as modules
sudo make modules


# ’make modules_install’, which must be run as root, ivileges) will create /lib/modules/‘uname -r‘ and copy the modules there.
sudo make modules_install


# Copy the kernel image and the System.map file to the /boot directory.

sudo cp System.map /boot/System.map-$VER
sudo cp arch/x86/boot/bzImage /boot/vmlinuz-$VER

# it seems config is needed ... added this now
sudo cp .config /boot/config-$VER

# Create the initramfs image.
cd /boot
sudo mkinitramfs -o initrd.img-$VER $VER


#and finally update the grub loader... if you use linux uses lilo check out how that works...
sudo update-grub
sudo update-grub2


echo If you see grub update successful with ur new kernel image ... then go ahead and reboot the system...
echo it will show the new kernel in the list... yipee! its done