From owner-freebsd-questions Sun Jan 13 23: 4:47 2002 Delivered-To: freebsd-questions@freebsd.org Received: from guru.mired.org (okc-65-31-201-166.mmcable.com [65.31.201.166]) by hub.freebsd.org (Postfix) with SMTP id 2D96C37B402 for ; Sun, 13 Jan 2002 23:04:44 -0800 (PST) Received: (qmail 81348 invoked by uid 100); 14 Jan 2002 07:04:43 -0000 Delivered-To: mwm@localhost.mired.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <15426.33499.296182.78699@guru.mired.org> In-Reply-To: <47662761@toto.iv> X-Mailer: VM 6.90 under 21.1 (patch 14) "Cuyahoga Valley" XEmacs Lucid X-face: "5Mnwy%?j>IIV\)A=):rjWL~NB2aH[}Yq8Z=u~vJ`"(,&SiLvbbz2W`;h9L,Yg`+vb1>RG% *h+%X^n0EZd>TM8_IB;a8F?(Fb"lw'IgCoyM.[Lg#r\ To: swear@blarg.net (Gary W. Swearingen) Subject: Re: HOWTO -- backup onto CDRs? Date: Mon, 14 Jan 2002 01:03:55 -0600 From: "Mike Meyer" X-Delivery-Agent: TMDA/0.43 (Python 2.2; freebsd-4.4-STABLE-i386) Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Gary W. Swearingen types: > "Brian T. Schellenberger" writes: > > They are all ways of putting bits on CDs; I can't imagine why one would work > > without bugs are more or less than the other. > Because different program developers have different levels of > carefulness in design, implementation, and testing. Or a program might > have been designed for one kind of operating system and file system and > pressed into service on another without adequate review and testing. Right. Note that those problems aren't in how the bits get on the CD, but in what the bits are. > don't trust them. I, for instance, have noticed that "tar" belches > error messages on some FreeBSD /dev entries with too-large node numbers. > (I asked about that here, and got ignored, but I've since seen another > mention of that as a problem.) The very last paragraph on the tar man page says: The tar file format is a semi fixed width field format, and the field for device numbers were designed for 16 bit (8 major, 8 minor) and can not absorb our 32 bit (8 major, 16+8 minor) numbers. Which is sufficient reason to avoid using tar on anything with device files on it. http://www.mired.org/home/mwm/ Independent WWW/Perforce/FreeBSD/Unix consultant, email for more information. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message