writing my own OS.....where to start from??

hi I wished to write a small OS, I would like to know if you know where to start, I've created my boot loader, but now I don't know what to write next... I'm not able to find any good src on the net......
thanks

loman

Probably something for the devices.

Originally Posted by loman

hi I wished to write a small OS, I would like to know if you know where to start, I've created my boot loader, but now I don't know what to write next... I'm not able to find any good src on the net......
thanks

loman

I read this page sometime last year, found it very interesting: hxxp://nocturnalnetwork.com/os.htm

Also, of some small interest: hxxp://www.linuxgazette.com/issue85/mahoney.html

Regards,
Satyric0n

Hi,
IMHO, a man who want to start (ehmmm, sorry 4 my english) writing his own OS need basic theory about scheduler, processes and threads , memory management, and so on...but maybe you already know this things.
Maybe you want to start writing an OS based on microkernel like L4 (very nice IMO ) ....
I am not an expert, i'm only a student but as you already know, writing an OS is not only a boot sector.
After that, you will know how, what and where to do something.
IMO.

PS.
Oh my god, this is my first post!

Try going to www.osdev.org, it links to a nice OS development resource centre which has lots of info.

Well here is a bit of info on the subject... hxxp://my.execpc.com/~geezer/osd/
alt.os.development would also be a good place to find more info

[zEr0]

in my opinion the first and the most important thing to write OS is to know very very much about Memory Management, without good and nice memory management you canť write some nice kernel

but its very hard to work

[N0P]

Try reading source code of other O.S. such as LinuX,HURD,BSD
P.s.> reading iz a source of knowledge ! Soorrry for my bad english ;o))

Have look here, you may get something.....

http://www.cse.ogi.edu/class/cse526/Reading%20List.html


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

http://www.memorymanagement.org

http://www.williamstallings.com/OS4e.html

Originally Posted by N0P

Try reading source code of other O.S. such as LinuX,HURD,BSD
P.s.> reading iz a source of knowledge ! Soorrry for my bad english ;o))

You would go crazy if you try to read the source of Linux, or BSD. It will take you couple months just to understand the low level code. Why not try to start with this books "linux kernel internal", then move up from there. I also have a book "Writing 32-bit OS" from Sams which have all the source in there too. PM me if you want the source.

Look at this
http://www.reactos.com/

Search Around for "Bonifide OS Dev" they have a mass of sources and technical data that will help you get started

May be hxxp://oslib.sourceforge.net/ help you

[Thims]

Charm OS. I think it is a very good start point:

http://gryaznov.net/projects/list.php?p=chaos

I think linux source is best choice.