On Wednesday 02 November 2011 06:49:14 Luca Aliberti wrote:
> Hello,
>
> I need to dump a NAND device (formatted to YAFFS2) in an image, then
> write this image to the NAND emulated device on a linux computer.
>
> To get image, I have done a nanddump of the device:
> ./nanddump -o -f /sdcard/userdataobb.nanddump /dev/mtd/mtd5
>
> I get a 150 MB file. To write the image to the NAND emulated device, I
> do this:
> modprobe mtdblock
> modprobe mtd
> modprobe mtdchar
> sudo modprobe nandsim first_id_byte=0xec second_id_byte=0xd3
> third_id_byte=0x51 fourth_id_byte=0x15
> sudo nandwrite -a -o -p /dev/mtd0 userdataobb.nanddump
> mount -t yaffs /dev/mtdblock0 /media/nand
>
> In result, /media/nand contents only a "lost + found" dir. But making a
> cat on mtdblock0 ouputs something which seems to be the contents of
> userdataobb.nanddump. I thought I retrieve the files of the original YAFFS2
> device, including all its clusters.
>
> Is there a way to get a dump of a YAFFS2 device, and to flash the dump

Hi

I am currently working on some tools that should support this.