Linux_Build

Prerequisites

1. There are a few tools that are necessary in order to build your own kernel(s).

$ sudo apt-get install gcc make bc fakeroot dpkg-dev libncurses5-dev libssl-dev kernel-package ccache

Build and Install

1. Clone the mainline kernel git tree: ???????

$ git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

2. Change to directory linux:

$ cd linux

3. Copy the kernel config file from your existing system to the kernel tree:

$ cp /boot/config-`uname -r` .config

4. If you need to make any kernel config changes, do the following and save your changes when prompted:

$ make menuconfig

5. Build the linux-image and linux-header .deb files using a thread per core + 1. This process takes a lot of time:

$ sudo fakeroot make-kpkg -j 5 --initrd --append-to-version=-custom kernel_image kernel_headers

6. Change to one directory level up (this is where the linux-image and linux-header .deb files were put):

$ cd ..

7. Now install the .deb files. ??????

$ sudo dpkg -i linux-image-4.9.0-custom*.deb
$ sudo dpkg -i linux-headers-4.9.0-custom*.deb

8. Update grub configuration:

$ sudo update-grub

9. Now ready to boot into your new kernel. Just make sure you select the new kernel when you boot:

$ sudo reboot