Re: beginning with linux
You want to learn embedded linux which is quiet vast. Refer to O-Reilly's Building Embedded Linux Systems and Embedded Linux Primer by Christopher Hallinan. These will give you an idea on the how embedded linux environment is like. To actually start working, you need to be at least a bit familiar with device drivers and how to do application programming using drivers. Also, you need to be familiar with using the command line in linux and shell scripting .