Main

h1. Build Custom Ubuntu Kernel

# Create container directory:

<pre>

$ mkdir custom_kernel && cd custom_kernel

</pre>

# Grab kernel source for the currently installed kernel version (NOTE: this can be modified as needed):

<pre>

$ apt-get source linux-image-$(uname -r)

</pre>

# Install build dependencies:

<pre>

$ sudo apt-get build-dep linux-image-$(uname -r)

</pre>

# Modify configuration (NOTE: you need to go through each (Y, Exit, Y, Exit..) or get a complaint about config later...):

<pre>

$ chmod a+x debian/rules

$ chmod a+x debian/scripts/*

$ chmod a+x debian/scripts/misc/*

$ fakeroot debian/rules clean

$ fakeroot debian/rules editconfigs 

</pre>

# Build kernel:

<pre>

$ fakeroot debian/rules clean

$ fakeroot debian/rules binary-headers binary-generic binary-perarch

</pre>

# Install kernel `.debs`:

<pre>

$ sudo dpkg -i linux-headers-3.19.0-80_3.19.0-80.88~14.04.1_all.deb linux-headers-3.19.0-80-generic_3.19.0-80.88~14.04.1_amd64.deb linux-image-3.19.0-80-generic_3.19.0-80.88~14.04.1_amd64.deb linux-image-extra-3.19.0-80-generic_3.19.0-80.88~14.04.1_amd64.deb

</pre>

h2. Useful Commands

* If using printk debug, increase the kernel logging verbosity:

<pre>

# echo 8 > /proc/sys/kernel/printk

</pre>