thanks for your help
On Mon, May 12, 2014 at 2:53 PM, Baruch Siach <bar...@tkos.co.il> wrote: > Hi Erez, > > On Mon, May 12, 2014 at 02:14:34PM +0300, Erez D wrote: > > On Mon, May 12, 2014 at 12:28 PM, Baruch Siach <bar...@tkos.co.il> > wrote: > > > On Mon, May 12, 2014 at 12:14:14PM +0300, Erez D wrote: > > > > On Mon, May 12, 2014 at 12:05 PM, Baruch Siach <bar...@tkos.co.il> > > > wrote: > > > > > 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 > > > > > > Yes, by default. > > > > > > > extended attr etc ? > > > > > > Yes. Use --xattrs. > > > > > > baruch > > > > thanks, i'll try that. > > > > can I ubiformat + untar from u-boot ? > > I don't see support for either in mainline U-Boot. Barebox supports > ubiformat > but not tar extraction. > > Your best option is to boot into RAM using a kernel combined with a minimal > Busybox based initramfs, and extract you tar from there. Note tough that > Busybox tar does not support extended attributes, so you must use GNU tar > for > this. Buildroot can generate a minimal initramfs image for you quite > easily. > > baruch > > -- > http://baruch.siach.name/blog/ ~. .~ Tk Open > Systems > =}------------------------------------------------ooO--U--Ooo------------{= > - bar...@tkos.co.il - tel: +972.2.679.5364, http://www.tkos.co.il - >
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