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On 22/02/10 23:16, Paul Murray wrote:
> To be honest, filesystem copies worked well a few years ago, but my
> major fear is recovery of windows vista and windows7 systems that I
> come across, dd imaging is flawless for bringing a config back to a
> known good point when windows tools can't recover them. Problem is
> dealing with 1TB drives etc, I usually pipe DD into gzip -c and that
> minimises the footprint of the image, but I figured there might be a
> clever way to avoid imaging empty sectors, or if not just to optimise
> the process.
Slightly related, and something I only found relatively recently which
enabled me to compress virtual hard drives that contained windows images.
Firstly, make sure that empty sectors on the disk are zeroed, which
sdelete.exe will achieve for you.
Then use whatever tool you like that ignores empty sectors, comfortable
in the knowledge that all (well, most of) the sectors which should be
empty have been zeroed. Nice!
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