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Embedded Linux is the use of a Linux operating system in an embedded computer systems such as a mobile phones, personal digital assistants, media players etc.

This tutorial shows you how to install Linux on a target system. Not a prebuilt Linux distribution, but your own, built from scratch. While the details of the procedure necessarily vary from one target to another, the same general principles apply. The result of this tutorial (if you have a suitable target) is a functional Linux system you can get a shell prompt on.

In this tutorial, you will learn about:

  1. Discussion of cross-compilation issues
  2. Review of the components of a Linux system and how they are put together
  3. Detailed steps for building, installing, and configuring the target system

=> Build an embedded Linux distro from scratch (free registration required)

Have you ever wondered how to create mobile phones ringtones with open source software?

This guide will teach you howto create ringtones using Ubuntu and some Open-Source software:

Download and Install Audacity. The Audacity package specific to Ubuntu can be found at the Ubuntu Download Site. Alternatively you can type the following from your command line.

Since most cell phones use the MP3 codec, you'll also need to install the LAME library separately (it doesn't come with Audacity because of patent issues). The LAME library can be found at the LAME project site on Source Forge. Once you've downloaded LAME, install it with the following commands.

=> 3 Steps to Creating Ringtones with Ubuntu (link is no longer working, hence removed!)