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Message-ID: <500C35F4.9050700@gmail.com>
Date: Sun, 22 Jul 2012 19:18:44 +0200
From: Jarry <mr.jarry@gmail.com>
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Subject: [gentoo-user] How can I rewrite all empty sectors with zeros?
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Hi,
I want to backup my whole hard-drive (8 partitions) with:
# dd if=/dev/sda | gzip > /path/image.gz

In order to achieve good compression level I'd like to wipe
out all empty space with zeros. How can I do that?

Jarry
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