ubi cloning

[Erez D]

On Mon, May 12, 2014 at 12:05 PM, Baruch Siach <baruch at tkos.co.il> wrote:

> Hi Erez,
>
> On Mon, May 12, 2014 at 11:46:43AM +0300, Erez D wrote:
> > i need to clone a nand flash. which has ubifs on it
> >
> > doing 'dd' didn't work as the source and dest have different bad sectors.
>
> dd is not the way to go with raw NAND flash access; it's not aware of bad
> blocks.
>
> > is there an easy way to clone a ubifs nand-flash ?
>
> You may be able get a working system using nanddump/nandwrite (see
> http://thread.gmane.org/gmane.linux.drivers.mtd/45792/focus=46024, but
> read
> the whole thread). Generally, tough, this is not what you want to do with
> UBI/UBIFS. You should use ubiformat on the target, and copy the content
> with
> tar. See http://www.linux-mtd.infradead.org/faq/ubifs.html#L_why_ubiformat
> .
>
will tar preserve uid/gid hard links, special files, /dev extended attr etc
?

>
> baruch
>
> --
>      http://baruch.siach.name/blog/                  ~. .~   Tk Open
> Systems
> =}------------------------------------------------ooO--U--Ooo------------{=
>    - baruch at tkos.co.il - tel: +972.2.679.5364, http://www.tkos.co.il -
>
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