Writing an operating system from scratch (bootloader, kernel, the works)

Hi,

I will like to know, where can I find tutorials in programming an operating system from scratch, (from bootloader -> software).

I understand how the operating system functions and I've written bootloaders for floppies but I need a concise programming tutorials for bootloaders in hard-disk.

Any tutorials/open-source codes will be appreciated.


Thanks...

Psychologist.
PsychologistAsked:
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tengageCommented:
I think I have the book you are looking for.  It is a step-by-step guide.

http://search.barnesandnoble.com/booksearch/isbnInquiry.asp?userid=v12YG2NAZa&isbn=0929349032&itm=1

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cosol27Commented:
That's really quite funny...

... I hope Phchologist will see the funny side as well...

CS :)
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gerodimCommented:
There are two books written by Tanenbaum called Operating Systems (Book A and Book B)
the first book is more on the theoretical side and the second on the actual creation of
operating systems.
Also check out
http://www.acm.uiuc.edu/sigops/roll_your_own/

http://www.linuxgazette.com/issue85/mahoney.html
but this one will be on the linux side of creating your os....

http://www.howtodothings.com/showarticle.asp?article=525
this one looks promising

Hope these help....

Also if you get mixed up with assembly language i'd recommend the book
Norton has written...
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jubber2002Commented:
what is your operating system going to be names. if it is linux based just try to edit grub or lilo. you can look at the source and learn how it works.
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gerodimCommented:
I request the points since I posted what he asked for...
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jubber2002Commented:
I agree with gerodim.
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