Build kernel from source code

If you are newbie to the kernel, It is a matter of time when you have to download kernel source and build it. Although working in Linux kernel domain for 2 years, I never did it earlier, so finally today I did it because of eudyptula-challenge.org.

So here are the steps, you should do to build your kernel. 

Step 1 : Download the source code from git.

Step 2 : Set up the config file. It is the file which tells at the time of booting what all configuration needed to be enabled. So easiest way to create config file sudo make localmodconfig

Step 3 : Further if you want to modify any change in config file, use sudo make menuconfig. Now change any configuration you want, you can select y/n/m.

Step 4 : Now its time to build your kernel, you can use either make or you can use make deb-pkg

Step 5 : To install the image, 

- If you used make earlier, then call make install.

- If you used make deb-pkg, then install the image first:

sudo dpkg -i linux-image-3.14.0-rc6-00145-ga4ecdf8_3.14.0-rc6-00145-ga4ecdf8-8_i386.deb
Then install the headers :sudo dpkg -i linux-headers-3.14.0-rc6-00145-ga4ecdf8_3.14.0-rc6-00145-ga4ecdf8-8_i386.deb

you can replace the version accordingly in above commands.

After reboot, you will be able to see the new linux kernel in your grub list.