Compare 'cp' and 'nandwrite'

Compare 'cp' and 'nandwrite'

[Jitendra Jain]

Hi all,

Can anyone explains me the difference between using nandwrite and cp
command for flashing JFFS2 filesystem?

Thanks in advance.

Regards
Jitendra Jain,





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Re: Compare 'cp' and 'nandwrite'

[Artem Bityutskiy]

On Thu, 2007-02-15 at 14:57 +0530, Jitendra Jain wrote:
> eInfochips Business Disclaimer:
> This message may contain confidential, proprietary or legally
> Privileged information. In case you are not the original intended
> Recipient of the message, you must not, directly or indirectly, use,
> Disclose, distribute, print, or copy any part of this message and you
> are requested to delete it and inform the sender. Any views expressed
> in this message are those of the individual sender unless otherwise
> stated. Nothing contained in this message shall be construed as an
> offer or acceptance of any offer by eInfochips Limited and/or
> eInfochips Inc("eInfochips") unless sent with that express intent and
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Re: Compare 'cp' and 'nandwrite'

[Ricard Wanderlof]

On Thu, 15 Feb 2007, Jitendra Jain wrote:

> Hi all,
>
> Can anyone explains me the difference between using nandwrite and cp
> command for flashing JFFS2 filesystem?

Nandwrite skips bad blocks in a nand flash when writing, whereas cp will 
stop with a write error as soon as it encounters one. If you don't have 
any bad blocks in the flash (or at least not where you want to write your 
image), there should be no practical difference.

/Ricard
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Ricard Wolf Wanderlöf                           ricardw(at)axis.com
Axis Communications AB, Lund, Sweden            www.axis.com
Phone +46 46 272 2016                           Fax +46 46 13 61 30