Hello Charles! Thanks for your answer. I did it all without any problem. How can I be sure that yaffs has been mounted. I mean where can I see this change, where can I study its mounted code and how can I change the code for example and check it? I have mnt folder in filesystem. it just contains lost+found folder. Is there anything wrong? I thought yaffs2 will be added to my devices like a usb or flappy. But it doesnt. Could you help me more? ________________________________ From: Charles Manning To: yaffs@lists.aleph1.co.uk; S. K. Sent: Sunday, May 6, 2012 11:57 PM Subject: Re: [Yaffs] How can I mount yaffs2 on ubuntu 12.04 On Saturday 05 May 2012 07:31:03 S. K. wrote: > Hi everyone! > > I have already became familiar with yaffs. I try to compile and mount it on > ubuntu 12.04 and have no flash for this work so, I prefer using it`s nand > emulator. Can you help me? I am not good at linux and need some help about > what I have to do(exactly) step by step. Fetch yaffs code from git. cd yaffs2 Build yaffs2multi.ko: make As root do  the following: sudo -s Install nandsim: linuix-tests/initnandsim 128MiB-2048 cat /proc/mtd Install yaffsmodule: insmod yaffs2multi.ko cat /proc/filesystems mkdir /mnt mount -t yaffs2 /dev/mtdblock0 /mnt -- CHarles