From owner-freebsd-questions@FreeBSD.ORG Fri Jan 23 16:30:54 2009 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 33DCD10656CC for ; Fri, 23 Jan 2009 16:30:54 +0000 (UTC) (envelope-from freebsd@edvax.de) Received: from mx02.qsc.de (mx02.qsc.de [213.148.130.14]) by mx1.freebsd.org (Postfix) with ESMTP id B8C938FC12 for ; Fri, 23 Jan 2009 16:30:53 +0000 (UTC) (envelope-from freebsd@edvax.de) Received: from r55.edvax.de (port-92-196-68-197.dynamic.qsc.de [92.196.68.197]) by mx02.qsc.de (Postfix) with ESMTP id AEDA616C00DB; Fri, 23 Jan 2009 17:30:51 +0100 (CET) Received: from r55.edvax.de (localhost [127.0.0.1]) by r55.edvax.de (8.14.2/8.14.2) with SMTP id n0NGUjLv001432; Fri, 23 Jan 2009 17:30:45 +0100 (CET) (envelope-from freebsd@edvax.de) Date: Fri, 23 Jan 2009 17:30:45 +0100 From: Polytropon To: cpghost Message-Id: <20090123173045.7a25e47f.freebsd@edvax.de> In-Reply-To: <20090123151635.GB1013@phenom.cordula.ws> References: <20090123011043.GA86638@thought.org> <20090123024811.9bdf4b3f.freebsd@edvax.de> <20090123073750.GB96433@thought.org> <20090123151635.GB1013@phenom.cordula.ws> Organization: EDVAX X-Mailer: Sylpheed 2.4.7 (GTK+ 2.12.1; i386-portbld-freebsd7.0) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: Gary Kline , FreeBSD Mailing List Subject: Re: how to create a DVD backup filesystem? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Polytropon List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 23 Jan 2009 16:30:54 -0000 On Fri, 23 Jan 2009 16:16:35 +0100, cpghost wrote: > Yes, but keep in mind that /dev/dvd points to /dev/acd0 and > not to /dev/cd0: This can be changed by "link cd0 dvd" in /etc/devfs. % ll /dev/dvd lrwxr-xr-x 1 root wheel 3 Jan 23 17:16 /dev/dvd@ -> cd0 > IIRC, growisofs needs atapicam, i.e. /dev/cd0, but I may be mistaken. Yes, I think it does. Its manpage mentiones /dev/dvd explicitely, so if you're using atapican anyways, it's quite handy to have the symlink above - for copy + paste from the manpage. :-) Tools like cdrdao and cdrecord use atapicam, too. > If you use tar to write to CD/DVD, you can't mount that directly > (unless it's supported as a special fusefs filesystem). You can't? You *don't need* to. :-) > If you write a UFS filesystem to CD/DVD, you can mount it from > FreeBSD (and probably other BSDs like NetBSD, OpenBSD, ...), but > not from, say, Windows. So yes, it will work on FreeBSD. That's quite nice to avoid curious people from browsing the CD. on "Windows", the media cannot be read. :-) > If you write an ISO-9660 filesystem on the CD/DVD, you can mount it > from FreeBSD/Linux/Unix/... and Windows. It will work. And on Mac OS X, too. > As archive, I'd recommend a filesystem that can be mounted by > as many platforms as possible, and that is currently ISO-9660 > with RockRidge and Joliet. I would recommend that way, too. Having read support for as many platforms as possible is always a good idea. As you already mentioned, it may be interesting if your machine for reading back data is surprisingly not a FreeBSD machine. -- Polytropon >From Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ...