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Date:      Thu, 15 Jan 2004 20:25:27 -0500
From:      "fbsd_user" <fbsd_user@a1poweruser.com>
To:        "freebsd-questions@FreeBSD. ORG" <freebsd-questions@FreeBSD.ORG>
Subject:   zero out unused HD space
Message-ID:  <MIEPLLIBMLEEABPDBIEGCEJOFEAA.fbsd_user@a1poweruser.com>

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I am trying to zero out all the unused disk space in the FBSD system
Hard Drive.
Using this command
dd if=/dev/zero of=filler bs=1m

but get error message saying file system full and have file named
filler.

I don't think this commands is doing what I want.

How can I check to see if the unused space is all zeros?

Help please.




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