On Thursday 24 June 2010 05:28:32 Viswanathan, Vijay wrote:
> You should use nanddump.
>
> [Viswanathan, Vijay] thanks but something is still missing it is booting
> up off the image  no kernel panic etc., but the application is not
> starting up none of the OS initialization but iam getting the username:
> prompt
>
> If I don't burn the image and boot i.e., when I just erase nand erase
> 0x180000  0x1e80000
> And boot I get kernel panic Which means it creates some meaningful image
> and it writes some meaningful image but its not my image.
>
> I did
> nanddump /dev/mtd1 full-dump-file
> nanddump /dev/mtd1 full-dump-file-1 0x180000 0x1e80000
> nanddump /dev/mtd1 offset-dump-file 0x184000
>
> but all of them have similar results
>
> the image is not close to the dd image, iam supposed to see just the OOB
> [ some 16 bytes ? ] header extra added to the top of each page right ?
>

Boot via some other method (initramfs etc) then manually  mount the yaffs 
image. This is a far easier way to explore what is happening.