How to build a minimal bootable system?

I'm interested in just a barebone system that can boot, and that's all.
Do you know any resource so I can document myself?
The programming language doesn't really matter, as far as it's not ASM

I'm not interested on kernels already built, like LFS book or any pre-build software.

Thanks!

 

Have you looked into any Linux OS?

 

Can start here:
http://linuxgazette.net/issue85/mahoney.html

It deals with building an OS. Course I don't know if that's what you want or if you after building a bootloader, which is a project in itself. Lots of links at the end of the article pointing to better sources for the information you are after.

 

Try www.linuxfromscratch.org Teaches you how to make a real Linux distro based on their LiveCD

 

Well, I told that I don't want to build a LFS system (in which the kernel is already built). I want to write my own from line 0 of code

 

Look at this page, it should help you alot. It comes from the page I linked to earlier. Resources exist for what you want, Plus you might want to give a clearer idea of what you want after it boots. A simple command line environment? I'd lay odds you will have to do ASM at some point before you could switch to C code.

http://www.nondot.org/sabre/os/articles

 

Thanks a lot! Very useful resource!

 

do u have the hardware , r u looking for an RTOS?

 

No, I just wanted to know how to boot up a small program that says at least "Hello world"