Fat12

[rooper]

This doesn't seem to be a hot topic so I'll ask about it, I have been reading the articles on file systems, but they haven't been much help I was wondering if you could give me a good tutorial on how to implement file systems preferably something easy like fat12 (if it's easy). Thankyou!

[thepowersgang]

FAT12 is a simple filesystem, if you can't figure out how to access it yourself, you are not ready for OSDev.

(Although, you could read the VFS article to get an idea on general filesystem driver theory)

[OSwhatever]

This doesn't seem to be a hot topic so I'll ask about it, I have been reading the articles on file systems, but they haven't been much help I was wondering if you could give me a good tutorial on how to implement file systems preferably something easy like fat12 (if it's easy). Thankyou!

Fatgen103.doc is usually a good start. Written by Microsoft themselves.

http://www.google.se/url?sa=t&source=we ... pA&cad=rja

[M-Saunders]

I used this to implement FAT12 in my OS:

http://www.disc.ua.es/~gil/FAT12Description.pdf

It has everything you need. FAT12 is rather simple and not difficult to implement. My OS (see sig) has a well-commented FAT12 floppy driver (real mode x86 asm) in source/features/disk.asm.

Don't look for hand-holding step-by-step tutorials for everything -- try reading specs and coding things yourself, to see what you're capable of. Good luck!

M