Published on May 9, 2006

Tthe kernel is the core piece of most operating systems. It is a piece of software responsible for the communication between hardware and software components.

As a basic component of an operating system, a kernel provides abstraction layers for hardware, especially for memory, processors and communication between hardware and software. It also provides software facilities such as process abstractions and makes interprocess communication easier.

Linux kernel code to compile (a fairly logical step)

Now that I have written so much about Linux kernel, I realize that many people reading those articles do not even know how to compile them. There are obviously many reasons why you need to compile your Linux kernel, such as:

- To patch your kernel.
- You have a university assignment.
- You are doing a course "Linux Kernel" as an undergraduate.
- You have coded your own device driver a device that isn’t supported yet.
- You think that there is some better way of process scheduling or memory management technique and you want to implement it.
- To try a new version of Linux kernel.

To start, you should have kernel code to compile (a fairly logical step). You can download it or copy it from /usr/src directory, make modifications and save it back to some directory.

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