Well, if your aim is to understand the basics of OS by engaging with its code then you can try "Pintos". It was designed to introduce undergraduates to concepts

Well, if your aim is to understand the basics of OS by engaging with its code then you can try "Pintos". It was designed to introduce undergraduates to concepts in operating system design and implementation by requiring them to implement significant portions of a real operating system, including thread and memory management and file system access. 1. http://en.wikipedia.org/wiki/Pintos http://en.wikipedia.org/wiki/Pintos 2. http://www.stanford.edu/class/cs140/projects/pintos/pintos_1.html http://www.stanford.edu/class/cs140/projects/pintos/pintos_1...