*BSD News Article 80825


Return to BSD News archive

Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!munnari.OZ.AU!news.ecn.uoknor.edu!news.wildstar.net!serv.hinet.net!news.cc.nctu.edu.tw!spring.edu.tw!howland.erols.net!news.mathworks.com!fu-berlin.de!irz401!orion.sax.de!uriah.heep!news
From: j@uriah.heep.sax.de (J Wunsch)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: Tape Backup help
Date: 15 Oct 1996 21:49:46 GMT
Organization: Private BSD site, Dresden
Lines: 27
Message-ID: <5410tq$dr9@uriah.heep.sax.de>
References: <53cjo1$9nf@scipio.cyberstore.ca> <53itmk$bi0@yama.mcc.ac.uk>
  <53nuu9$8p4@uriah.heep.sax.de> <DzA0JE.AF9@cogsci.ed.ac.uk>
Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch)
NNTP-Posting-Host: localhost.heep.sax.de
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 8bit
X-Newsreader: knews 0.9.6
X-Phone: +49-351-2012 669
X-PGP-Fingerprint: DC 47 E6 E4 FF A6 E9 8F  93 21 E0 7D F9 12 D6 4E

richard@cogsci.ed.ac.uk (Richard Tobin) wrote:

> >he was trying to dump only _part_ of a filesystem, which is simply
> >impossible due to the way how dump works (by scanning the raw dev that
> >corresponds to the filesystem).
> 
> Hardly impossible, since Sun's dump has done it for years...  It can
> scan the device, and only dump files within the specified tree.

Interesting idea.  I think it might become a little confused about
hard-linked files where part of the links falls outside the desired
dump tree, but it might be worth the while.  This feature is about
what people do most miss on dump(8).  (The ability to exclude specific
subtrees would be even more cool, so you can e.g. exclude your /var
subtree when dumping / where /var is on /.)

>  I seem to recall someone here saying that it wouldn't take much to
> add this to the FreeBSD dump program.

Well, if somebody has it done, i'm certainly interested!

-- 
cheers, J"org

joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)