OSDev.org

Hi everyone, im new At this Site..i started my kernel with the james molloy roll your UNIX clone but the tutorial had many Bugs so i mixed
bkerndev and james molly kernels..with some of my tuneups and programming ... but now im stuck at FS....
i want to add FaT12 FS driver to my Kernel but dont have much experience in Programming FS so i dont know How to Do it..... i have added floppy driver to my kernel..

it would be helpful if you can Help me by some code...or tutorial for writing FS related code......I tried To add EXT2 fs in my Kernel But It all cause nothing but a bunch of errors of defs so i am now thinking to Add FAT 12 as i think it is very easy to setup..
i want to load disk img using Floppy so it would also be helpful if you can help me how to load img using Floppy driver..so that i can use the function in my init.....

thank you...

Hi,

I'm just starting out at this myself but personally I learnt all about FAT12 from the tutorials at http://www.brokenthorn.com/Resources/OSDevIndex.html. I haven't got to disk access within the kernel yet, but I assume it's different to using the BIOS interrupts, which is what's used in this tutorial link, however the FS structure is well explained (I'm thinking specifically "bootloader 4").

Hope it helps at least a little

Thanks,
Jon.

Very useful explanation of FAT12:
http://www.eit.lth.se/fileadmin/eit/cou ... iption.pdf
I learnt from this.

the proper way to understand the FAT filesystems would be, of course, the official documentation

really, if what your looking for is information on the filesystem, that can be found in our wiki (which also has links to the official documentation) -- which is where we encourage people to check before posting questions anyway

the wiki also has information on FDD/HDD, and many other things that you probably need first

hi.
I know that Manuals of Fat 12 driver is best way to start but can I get some Src..or an simple eg of Fat 12 driver implementation....

thankyou