Where is the installed kernel source located?

I have installed kernel source with

sudo apt-get install linux-source -y

Now, where is the source located?

2 Answers

The kernel source code installed by the linux-source package is installed in the form of a compressed archive in the /usr/src directory. For example, if you are running Ubuntu 14.04 LTS, the kernel source archive will be at /usr/src/linux-source-3.13.0.tar.bz2. You can unpack the source code in your current directory wherever you like to view it with

tar jxf /usr/src/linux-source-3.13.0.tar.bz2

If instead you would like to know how to get and prepare the kernel source for building your own custom kernel, see the Ubuntu help document on compiling your own kernel or these other questions and answers:

• Where can I find the source code for the Ubuntu Kernel?
• Is the Ubuntu kernel open source and available for download and building?
• How do I get the kernel source code?

In general, to find the files installed by a package, use dpkg -L <packagename>