From owner-freebsd-stable@FreeBSD.ORG Fri Dec 5 09:00:30 2008 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id F27961065676 for ; Fri, 5 Dec 2008 09:00:30 +0000 (UTC) (envelope-from admin@kkip.pl) Received: from mainframe.kkip.pl (kkip.pl [87.105.164.78]) by mx1.freebsd.org (Postfix) with ESMTP id 9F9F58FC1E for ; Fri, 5 Dec 2008 09:00:30 +0000 (UTC) (envelope-from admin@kkip.pl) Received: from admin.admin.lan.kkip.pl ([10.66.3.254]) by mainframe.kkip.pl with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.69 (FreeBSD)) (envelope-from ) id 1L8WXy-0006n1-RX for freebsd-stable@freebsd.org; Fri, 05 Dec 2008 10:00:29 +0100 Message-ID: <4938EDAB.70809@kkip.pl> Date: Fri, 05 Dec 2008 10:00:27 +0100 From: Bartosz Stec User-Agent: Thunderbird 2.0.0.18 (Windows/20081105) MIME-Version: 1.0 To: freebsd-stable@freebsd.org References: <4937A786.9080403@kkip.pl> <20081204154507.GA18645@Grumpy.DynDNS.org> <493801F5.2050009@math.missouri.edu> <493816EE.8010408@comcast.net> <20081204191957.GA32007@Grumpy.DynDNS.org> In-Reply-To: <20081204191957.GA32007@Grumpy.DynDNS.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Authenticated-User: admin@kkip.pl X-Authenticator: plain X-Sender-Verify: SUCCEEDED (sender exists & accepts mail) X-Spam-Score: -8.9 X-Spam-Score-Int: -88 X-Exim-Version: 4.69 (build at 01-Nov-2008 10:39:57) X-Date: 2008-12-05 10:00:29 X-Connected-IP: 10.66.3.254:1870 X-Message-Linecount: 58 X-Body-Linecount: 45 X-Message-Size: 2533 X-Body-Size: 1869 X-Received-Count: 1 X-Recipient-Count: 1 X-Local-Recipient-Count: 1 X-Local-Recipient-Defer-Count: 0 X-Local-Recipient-Fail-Count: 0 Subject: Re: Burning DVD with files>4GB from console X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 05 Dec 2008 09:00:31 -0000 David Kelly pisze: > On Thu, Dec 04, 2008 at 12:44:14PM -0500, Steve Polyack wrote: > >> Not too say you're .iso images can't be >2GB/4GB, but I'm pretty sure >> the ISO9660 standard is limited to a 2GB maximum file size (for files >> within the .iso). You must use UDF to burn files of greater size. >> mkisofs(8) seems to support this, if only in alpha/hybrid stage: >> >> -udf Include UDF support in the generated filesystem image. UDF sup- >> port is currently in alpha status and for this reason, it is not >> possible to create UDF only images. >> > > It would seem then that the O.P. who is already splitting his backup > into 4.3GB chunks should split backups into sub-2GB chunks. > 4,700,000,000 is the standard DVD size, I'd shoot for chunks of 4.5E9/3 > so as to have about 200MB of headroom per DVD. > > growisofs will write 3 files to the DVD just as easily as one. The magic > of growisofs is that it invokes mkisofs on the fly. And also that > cdrecord had obnoxious (and broken) licensing in years past when I last > tried it. > > Yes, I know that. My reasons for keeping one file on DVD are just for making my life easier. If I want to restore some files from filesystem backup (they are made via pipeline dump | gunzip | split) I have to copy all files from DVDs wchich includes needed filesystem and then I type: cat file1 file2 file3 ... fileN | gunzip | restore -if - And yes, I know that tapes are much better for tasks like this but for now I just have to use DVDs :) Now imagine backup placed on 10 DVDs. With single file on DVD I have 10 files to manage, not 30. I know there're workarounds but with more files I probably will need some script to restore files rather than do it manually. That's the reason I asked if there's a possibility to burn it this way from FreeBSD. -- Bartosz Stec