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Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!lucy.swin.edu.au!news.rmit.EDU.AU!goanna.cs.rmit.edu.au!news.apana.org.au!cantor.edge.net.au!news.teragen.com.au!news.access.net.au!news.mel.connect.com.au!news.mel.aone.net.au!grumpy.fl.net.au!news.webspan.net!ix.netcom.com!news.maxwell.syr.edu!mr.net!newshub.tc.umn.edu!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: Need help with dump parameters Date: 13 Mar 1997 23:41:53 GMT Organization: Private BSD site, Dresden Lines: 37 Message-ID: <5ga3c1$pp@uriah.heep.sax.de> References: <5g87ob$arr@sloth.swcp.com> 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 Xref: euryale.cc.adfa.oz.au comp.unix.bsd.freebsd.misc:37032 crs@swcp.com (Charlie Sorsby) wrote: > Sun recommended (under SunOS 4.x) the following: > > dump 0cusf 1500 /dev/rst? <filesystem> > > Man dump shows no "c" option under FreeBSD so I eliminated that The `c' option was there, however. (I've also documented it now.) The 1500 was still too little, 15000 seems to be more realistic for a 150 MB cartridge: j@uriah 109% /sbin/dump 0cusf 15000 /dev/null /var DUMP: Date of this level 0 dump: Fri Mar 14 00:38:57 1997 DUMP: Date of last level 0 dump: the epoch DUMP: Dumping /dev/rsd0h (/var) to /dev/null DUMP: mapping (Pass I) [regular files] DUMP: mapping (Pass II) [directories] DUMP: estimated 107952 tape blocks on 0.71 tape(s). ... > Where does one obtain information for the proper parameters for > dump? They are highly bogus anyway. Any large enough number will do it. In FreeBSD 2.2 and above, there will be the `a' option, meaning to make all tape length calculations `automatic' (which doesn't mean anything else than not doing tape length calculations at all, but rely on the tape driver reporting EOF). -- 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. ;-)