flash image from SD card

[Willie Chen]

Werner Almesberger wrote:
> Willie Chen wrote:
>   
>> * erase u-boot.bin and u-boot.env in linux.
>>     
>
> With "erase", you mean flash_eraseall followed by nandwrite ?
>
> I'm a little confused about what exactly you're doing. In the example
> you sent, you first flashed u-boot with u-boot.bin, then you overwrote
> u-boot (!) with env-5secs.env. So this system shouldn't boot at all.
>
> I.e., your example said
>
> $ flashimage /dev/mtd1 /home/root/u-boot.bin
> $ flashimage /dev/mtd1 /home/root/env-5secs.env
>
> while it should have been
>
> $ flashimage /dev/mtd1 /home/root/u-boot.bin
> $ flashimage /dev/mtd2 /home/root/env-5secs.env
>   

Sorry, I copy the wrong example.
I flash u-boot.bin into mtd1 and flash env-5secs.env into mtd2.

> However, since the content of /dev/mtd2 you sent does look as if the
> correct update has been performed, that doesn't quite match this sort
> of sequence. There are probably the results of several runs mixed
> into one.
>
> So perhaps the first thing to check would be that there's no trivial
> typo in your scripts. Happens all the time and can take forever to
> debug ;-)
>
> If the problem still exists, can you please bring the system to the
> state it's in before flashing, and then repeat the procedure, and send
> the exact output you're getting, snapshots of /dev/mtd2 ? I.e.,
>
> - bring system to original state (devirginate ?)
> - boot into Linux
> - cat /proc/mtd
> - nanddump -b -o -f env_before.bin /dev/mtd2
> - do the flashing (with -x, send the output)
> - do the flashing of env-5secs.env from Linux
> - nanddump -b -o -f env_linux.bin /dev/mtd2
> - reset and send what you're seeing one the console(s)
>
> Thanks,
> - Werner
>   

Okay, I will try this again.

Regards,
Willie