[Yaffs] 2GB SLC MICRON NAND flash on omap3

Hi,
I am working on getting 2GB SLC MICRON NAND flash on omap3 board. I am
able to detect the ID and able to mount with yaffs2.
I am able to write to the chip. I am not allowed to delete or enter in
to the directory structure.

Here is the output of ls -l command.

ls -l /mnt/nand/
ls: imposs�ível acessar /mnt/nand/lost+found: Permiss�ão negada
total 0
d????????? ? ? ? ? ? lost+found


Any pointers on this will be of great help.

Thanks,
Ramprasad