From owner-freebsd-hackers  Thu Jul 26 21:46:28 2001
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To: James Howard <howardjp@Glue.umd.edu>
Subject: Re: Backup file formats: tar, cpio, pax, yadda, yadda, yadda 
Cc: =?iso-8859-1?Q?Lars_K=FChl?= <kuehl@lgk.de>,
	freebsd-hackers@FreeBSD.ORG
In-reply-to: Your message of "Thu, 26 Jul 2001 14:54:52 EDT."
		<Pine.GSO.4.21.0107261449560.14427-100000@z.glue.umd.edu> 
References: <Pine.GSO.4.21.0107261449560.14427-100000@z.glue.umd.edu>  
Date: Thu, 26 Jul 2001 22:46:24 -0600
From: Warner Losh <imp@harmony.village.org>
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In message <Pine.GSO.4.21.0107261449560.14427-100000@z.glue.umd.edu> James Howard writes:
: A lot of people said this.  Why?  As near as I can tell, dump isn't that
: great either.  There is no way to exlude specific directories with dump
: and it appears to be quite painful to restore a specific directory (though
: I could be wrong about this.

dump will dump everything.  Always.  Without fail.  All others fail.
Restoring specific directories is trivial.  Excluding directories in
dump isn't possible on the command line, but you can tag them with
chflags dodump and they won't get dumpt.

Dump is a little slow sometimes, but it works 100% of the time.  tar,
et al don't and can't.  Fixing the tar/cpio/pax file formats isn't
possible at this late date, so thet are unsuitable.

Warner

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