Mail Archives: cygwin/2007/09/19/15:53:44
On 9/19/07, Eric Blake <> wrote:
> Scalzott, Todd <> writes:
>
> >
> > I believe that this is part of CORE, which I have at 6.9-5. I did
> > update to all of the latest just a short while ago and reverified the
> > problem.
>
> There's no such thing as CORE in the cygwin distribution; you meant coreutils.
>
> >
> > I've discovered what I believe to be a problem with "dd" on several
> > different XP SP2 systems with Cygwin installed involving the usage of
> > Windows' \\.\PhysicalDrive nomenclature.
>
> That's your problem. Cygwin is a Linux emulation, and use of Window's \\.\
> nomenclature is not guaranteed to work. Using the corresponding posix-y name
> is more likely to succeed, in which case the bug is not in dd but in your usage.
>
> >
> > That is, reading from \\.\PhysicalDrive1 with the below command works
> > flawlessly:
> > dd if=^\^\.^\PhysicalDrive1 of=tmp.img bs=16384
>
> That's an unusual quoting style; it certainly doesn't work under bash. Are you
> by chance trying this under cmd.com? In which case, why are you bothering with
> quoting? cmd.com passes \ through without the need for quoting.
>
> At any rate, what you probably wanted something more like this (less typing,
> and no need for quoting, whether in cmd.com or bash):
>
> dd if=tmp.img of=/dev/sda bs=16K
>
> See http://cygwin.com/cygwin-ug-net/using-specialnames.html for more details.
>
> --
> Eric Blake
> volunteer cygwin coreutils maintainer
I concur with Eric Blake. I have used dd, dd_rescue, aimage, and the
sleuthkit under Cygwin using the /dev/sdX nomenclature.
It works once you can figure out which /dev/sdX corresponds to which
device+partition.
-Jason
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