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Date:      Wed, 9 Apr 2008 21:34:39 +0200
From:      Roland Smith <rsmith@xs4all.nl>
To:        Dick Hoogendijk <dick@nagual.nl>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: Back up files...
Message-ID:  <20080409193439.GB2998@slackbox.xs4all.nl>
In-Reply-To: <20080409203828.00003114@westmark>
References:  <ee9dc2b40804082011o53d4fe88l99f7604711ff30e1@mail.gmail.com> <20080409161645.GA96773@slackbox.xs4all.nl> <20080409203828.00003114@westmark>

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On Wed, Apr 09, 2008 at 08:38:28PM +0200, Dick Hoogendijk wrote:
> On Wed, 9 Apr 2008 18:16:45 +0200
> Roland Smith <rsmith@xs4all.nl> wrote:
>=20
> > What I would recommend is to buy a large harddisk with a USB
> > connection and use that to store your backups. Make your backups with
> > the dump(8) command, and compress the dump using gzip(1). E.g. to
> > dump the root partition:
> >=20
> > dump -0 -a -C 8 -h 0 -L -u -f - / |gzip
> > >/where/to/put/root-0-20080409.gz
>=20
> OK. Right. And what is exactly the command for restore?
> Something like "gunzip dumpfile.gz | restore rf dumpfile"

Close. It's 'gunzip dumpfile.gz | restore -rf -' since  you are
restoring from standard input.=20

If you just want to restore a couple of files instead of the whole
thing, you should use '-i' instead of '-r'. But if you're using '-r',
you should make a pristine filesystem with newfs first.

Personally I use 'gzip -1' for compression because it's fast. Using
bzip2 usually isn't worth it; backups will be a couple of percents
smaller but take two to three times as long!

The script that I use to make backups of all my UFS partitions can be
found on my shell-scripts page under the name 'dodumps', in case anyone
is interested: http://www.xs4all.nl/~rsmith/software/scripts.html

Roland
--=20
R.F.Smith                                   http://www.xs4all.nl/~rsmith/
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