to write a filesystem from scratch
 

how we can start to write a filesytem?
thankyou for every answer

Start from the beginning, and stop when you are done.

Seriously, IMHO the good question is not "how" but "why".

In any case, have a look first at http://en.wikipedia.org/wiki/File_system

There is various good literature on that.

But how about if you first tell us what need you feel to write a new file system, and what advantages it will have above other existing file systems?

I guess that if you want to write a file system from scratch you are looking towards thousands of men-hours of effort, so I am sure you want to explain us more than those 8 words you just posted.

jlinkels

I'm student and this project is for my bad collage .I try to write a small and simple filesystem .I read a 'practical filesystem design with the Be filesystem' but I can't understand from which point, I should start .There are kits that help me for easy start .

In one sentence, I want to write a flesystem like ramfs and or simpler.

thankyou for every answer

There is a filesystem called the "Simple File-System" that is supposed to be even more simple than FAT. So look at that and see how it does what it should and how it keeps track of files and then apply the concepts in your own.
If working with C++ (My Reccomendation) get VERY well aquainted with fstream.

Another thing ,

I try find a kit simlar fskit (http://www.mkp.com/giampaolo/fskit.tar.gz)

this kit was in book of 'practical filesystem design with the Be filesystem'

Just have a look to Dominic Gianpaolo's homepage, you'll find a link to a pdf file of the book and a link to the file system construction kit that you can download as well.

Exist another kits similar fskit
if exist , please describe that to me

Tankyou for every answer

Isn't this what you are looking for ?

I looking for a kit(tools or ide or every thing) that help me for product code ,
in the field of filesystem .

Please don't ask the same questions in two different threads.

excuse me Didier
but until now i can't find my answer