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From: Rob Bosch <rbosch AT ipremise DOT net>
To: "cygwin AT cygwin DOT com" <cygwin AT cygwin DOT com>
Date: Mon, 27 Jul 2009 15:48:34 -0600
Subject: RE: ntfsclone for cygwin 1.7 (issues pointing to shadow copies)
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The issue appears to be with ntfsclone in that it must point to something i=
n /proc/partitions.  It will not work with any /cygdrive/X (used dosdev.c f=
rom Corinna and typical vshadow to expose as a drive with no luck).  I foun=
d this out by commenting out the read-only check and rebuilding ntfsclone/n=
tfsinfo.  The code apparently uses a win32_io.c file when building on cygwi=
n.  This file creates its own device mappings (e.g. /dev/hda1 instead of us=
ing the existing /dev/sda1).  I guess there would be a way to modify it to =
use cygwin devices but I don't know how.

If shadow copies could be presented as block devices to this library then i=
t would open up a lot of possibilities for creating block-level clones of p=
artitions without having to boot to a live CD.  I guess it is dd piped thro=
ugh gzip for now.  It sure is a waste when you only have 50GB on a 500GB dr=
ive since dd processes the entire drive.

Does anyone have anything else to add?  I'm guessing not...

Rob
=20
------------------- original note

Does anyone know of an ntfsclone package that works under 1.7?  I tried com=
piling 2.0 from sourceforge.  I didn't get any errors from ./configure, mak=
e, or make install but the executable doesn't return anything when I run it=
.  ntfsclone --help doesn't return anything either.

I've been using dd with volume shadow copies to capture partitions (very co=
ol direct reference of //?/GLOBALROOT devices!).  I'd prefer to use ntfsclo=
ne for speed.

Rob



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