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Date:      Sun, 23 Oct 2011 23:15:44 +0400
From:      Peter Vereshagin <peter@vereshagin.org>
To:        freebsd-questions@freebsd.org
Subject:   Re: Need to Backup Using Dump
Message-ID:  <20111023191543.GA5252@external.screwed.box>
In-Reply-To: <20111023210814.698a51b6.freebsd@edvax.de>
References:  <000001cc90c0$a0c16050$e24420f0$@org> <4EA2CE72.5030202@cran.org.uk> <20111022161242.11803f76.freebsd@edvax.de> <4EA31702.7080406@locolomo.org> <1319375054.79311.YahooMailNeo@web36507.mail.mud.yahoo.com> <20111023210814.698a51b6.freebsd@edvax.de>

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Hello.

2011/10/23 21:08:14 +0200 Polytropon <freebsd@edvax.de> => To Bill Tillman :
P> The dump + restore mechanism operates on device files
P> representing a file system, not a _mounted_ file system,
P> as source.

dump(8) is able to make a snapshot behind teh scenes, and use that snapshot as
a source for dump:

    -L      This option is to notify dump that it is dumping a live file sys
             tem.  To obtain a consistent dump image, dump takes a snapshot of
             the file system in the .snap directory in the root of the file
             system being dumped and then does a dump of the snapshot.

--
Peter Vereshagin <peter@vereshagin.org> (http://vereshagin.org) pgp: A0E26627 



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