Bootloaders. How to create them?

[Mr_Spam]

i get the same error with debug. I can either write to sector 1, or sector 2, but not both

[tfurtado]

Thanks to you all!

Please, I want to start my kernel but I don't know where to do it.
Please, tell me in few lines what kind of things the kernel should do and what should I do to start the creation of my kernel.

Thanks for helping on PartCopy.

Bye!

[Mr_Spam]

kernals handle necsassary system proccesses. but to start, its hard enough to write one that just displays "hello" the screen and build form there

[jrfritz]

It is easier to use someone elses code as example. Frank helped me.

[tfurtado]

I don't know much assembly.
I want to create a kernel using C (mixing with ASM, if necessary). Please, I want to know how to create a simple kernel (just to display a message, for instance) and how to load it (I'm using windows).

Any help is welcome!

[jrfritz]

Well:

Just include my fstdio file.

Compile with DGJPP and NASM.

Use partcopy.

PlayOS shows how to do this in "Where do I start?", somewhere hidden in 8 pages.

I want to add Windows support and compiling information....but i've got alot of other stuff to do...

[tfurtado]

I may seem to be a completely stupid, but if someone could, I'd like to see posted here a list of the steps to start making a kernel.
And Tom, if you could show me your code, I'd be glad.
If someone have GOOD address for absolute AMATEURS (me), I'd be very thankful.

Thanks for your help. You're helping me so much!
P.S.: I want to know where can I find a good bootloader, easy to use that runs in Windows.

Bye..

[jrfritz]

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[tfurtado]

My OS isn't running yet, since it has nothing
I need the BASIC steps to start making my kernel runs. I need to know were to pick up and how to make grub works.
Then I could think in starting my kernel.

If someone could help my, I'd be glad!

Bye!

[jrfritz]

Hmm...you just make a flat binary of the code I made...and put it on a floppy.

Use the prinf function I put in FritzOS. You don't need to make one...use mine.

[tfurtado]

Thanks Tom!

I'll do this, but I'll try to understand the code and if I couldn't understand something, I'll ask you for help, ok?

Bye!

[jrfritz]

Ok.

Also...I'm making a DOS installer...so it'll be easier!

[tfurtado]

Ok!

When it's done, post it here.
I can't write the 'boot.img' to the floppy disk using partcopy...

I'll wait for the DOS installer.

Bye!

[jrfritz]

:-\ My DOS installer will use partcopy. Is there something wrong with your drive? Show me the partcopy command line and the error you get.

[tfurtado]

Command line:
partcopy boot.img 0 41200 -f0

Error:
I don't remember the exact error message, but it tells that it was not possible to write to offset 0 of the floppy drive. If I change the lenght of boot.img to 200 (only the bootsector), it works right...
If you can understand what's happening, tell me please.

Bye!