Hi, Well I guess the best place to start learning about Operating Systems is where I started off my journey
http://www.osdever.net/bkerndev/Docs/title.htm See if that helps you. It helps you create a very small, minimalistic kernel, at least you would revel in the glory of seeing a kernel that you have wrote all by yourself. Then you can go ahead and put little more flesh and bones into the basic skeleton like try adding a memory module, process manager that would do process switching etc and see it growing. As you move forward you might require to learn more, things like Interrupts(if you are planning to build an OS for i386 processors. This link would help you in such an eventuality: http://www.ctyme.com/rbrown.htm Then you might like to know more about vesa for building GUI modules and Filesystems etc. Follow this link in case you get to that point. http://www.nondot.org/sabre/os/articles I think by the time you would be in a position to understand most documents that have been posted in these websites, you would like to read and learn something more holistic, something more substantial. That's when pick up Tanenbaum's book cause its got theory as well as code, enough to keep you busy for ages. Most people start off with the vision of starting a cult like Linux but end up eventually settling down on doing things that are easier and less time consuming like writing device divers or system programming or kernel modules etc. In case you finally get nirvana, you would realise that finally all that you can easily create your own version of linux and be the next mark shuttleworth. That's when LFS would come to your rescue. Its not difficult to make an OS. All it needs is patience and very few people have it. I know it because I am typing this email from my own LFS box. I call it PRATHAM(first of its kind in Hindi). All the best though for the adventurous endeavour. CS
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