From owner-freebsd-questions@FreeBSD.ORG  Fri Jan 23 08:14:16 2009
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Date: Fri, 23 Jan 2009 09:14:07 +0100
From: Polytropon <freebsd@edvax.de>
To: Gary Kline <kline@thought.org>
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Cc: Tim Judd <tajudd@gmail.com>,
	FreeBSD Mailing List <freebsd-questions@freebsd.org>
Subject: Re: how to create a DVD backup filesystem?
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On Thu, 22 Jan 2009 23:45:16 -0800, Gary Kline <kline@thought.org> wrote:
> On Thu, Jan 22, 2009 at 10:26:22PM -0700, Tim Judd wrote:
> > You can always try to tar it up directly
> > 
> > tar -czf /dev/acd0 ~kline/ ~devel/
> > 
> > Good luck.
> 
> 
> 	I do tar ~kline --bzip'd-- and scp it around.  3 times/week.  I
> 	want my most important stuff, ~/[DOT] files too, on a DVD.
> 	Y'never know when a meteor will destroy the Earth... .

Using tar onto acd may not work, but utilizing atapicam, it could
eventually work with cd directly:

	% tar cvjf /dev/cd0 ~/.* ~/devel ~/music ~/texts

But this does not (!) make the media mountable! You may see that
as a disadvantage, but maybe it's not: You can access it now
directly without needing to mount it, and you can extract from
it by selection, e. g.

	% tar xvjf /dev/cd0 ~/music

to only extract the music/ subtree.

The tar "file system" is best for interoperability because (if
I may say this) every UNIX-like OS can read tar, no matter if you
put it n discs, disks, tapes or even hard disks or USB sticks.




-- 
Polytropon
>From Magdeburg, Germany
Happy FreeBSD user since 4.0
Andra moi ennepe, Mousa, ...