duplicate DoC millenium with dd

David Woodhouse dwmw2 at infradead.org
Tue Sep 11 16:17:30 EDT 2001

niko at isl.net.mx said:
>  for some reason I can not duplicate Disc on chip Millenium (8MB) with
> dd command. I can build it using dd, fdisk, nftla_format, erase....
> etc, but  not only dd.  

The DiskOnChip uses NAND flash, which has 'out of band' data areas. A 
simple dd won't read or write them. Neither would it be sensible to use the 
nanddump and nandwrite utilities for doing so, although they can - you want 
to reformat each device individually, with its own bad block map, not the 
bad block map of your master.

nftl_format, mkfs and tar or dump/restore are sensible.

What are you partitioning it for, btw?


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