Hi Hrushit, On Fri, Apr 1, 2016 at 12:24 PM, Hrushit Parikh <parikhhrushit@hotmail.com> wrote:
Hey Anil, Thanks a lot for your reply. Your approach worked for me!! Maybe I missed reading in the FirstKernelPatch tutorial that compile steps are OS dependent.
Your welcome. :) But Please note get familiar with the basic kernel compilation process before jumping onto distro specific kernel compilation.
1. Copy old configuration (Use old configuration to built the kernel): cp /boot/config-`'uname -r ` ./.config
2. Clean Working Directory "make-kpkg clean".
3. Compile the Kernel
"export CONCURRENCY_LEVEL=3" ( For parallel builds, faster compilation).
"make-kpkg --initrd --revision=0.1CustomKernel kernel-image kernel-headers --rootcmd fakeroot"
( "0.1CustomKernel" can be any name of your choice to give the kernel you build a unique name. There are some restrictions on the names mentioned on make-kpkg man page --rootcmd fakeroot complained of permission denied while building kernel so I used --rootcmd sudo)
4. Install the kernel "sudo dpkg -i ../linux-header.deb" "sudo dpkg -i ../linux-image.deb"
5. Reboot machine into new kernel.
Compile the kernel in home directory don't use sudo except for installing the kernel.
Ya I missed a few details thanks for filling that up. :)
Thanks again Anil! I can finally start familiarizing with subsystems and drivers and work towards my first kernel patch!
Your welcome once again.:) Also there is great book that Greg KH has written, http://www.kroah.com/lkn/ (Linux Kernel In Nutshell), Its a great start for beginners, All the kernel compilation steps are mentioned in the book, be sure to read it. :) -- -- Regards, Anil Nair