From owner-freebsd-questions Thu Nov 9 7:28:23 2000 Delivered-To: freebsd-questions@freebsd.org Received: from mail.rz.uni-ulm.de (sirius-giga.rz.uni-ulm.de [134.60.241.36]) by hub.freebsd.org (Postfix) with ESMTP id 39BDC37B479 for ; Thu, 9 Nov 2000 07:28:16 -0800 (PST) Received: from lilith (lilith.wohnheim.uni-ulm.de [134.60.106.64]) by mail.rz.uni-ulm.de (8.9.3/8.9.3) with SMTP id QAA15203; Thu, 9 Nov 2000 16:24:22 +0100 (MET) Message-ID: <003101c04a61$235c2b60$4011a8c0@wohnheim.uniulm.de> From: "Siegbert Baude" To: "Francisco Reyes" Cc: References: <14858.8021.184463.262550@guru.mired.org> Subject: Re: How to newfs CDRW media? Date: Thu, 9 Nov 2000 16:24:21 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Hello Francisco, > > Basically I want to newfs a CDRW for backups. > Mike said: > FreeBSD doesn't support that. A CDRW is a reusable CDR, not a file > system. Some of the Windows CDRW tools (provided by the CDRW > manufacturer) may provide a file system that lets you use a CDRW that > way, but I don't know of any tool that does that for FreeBSD. Donīt know your skills in CD-writing terms, so to be clear: Mike was refering here to the so called UDF or Packet-CD file system, which is an alternative to the iso9660 file system normally used on CD-ROMs. UDF would allow you to just drag and drop files onto your drive symbol in Windows Explorer, without the need for any burn program, when you once have your CDRW formatted with UDF. The big disadvantage: You canīt read this CDs with any Unix I know of (even for Win you have to install a driver first). So of course you can do backups on CDRWs with any Unix including FreeBSD, but not by just simply "cp files /cdrom" as Mike probably understood your question for a file system on CDRW, but by e.g. tar-ing the files, then mkisofs and finally burn them with burncd. If your first backup wonīt fill your CDRW completely you can look for so called multi-session recording and so do the writing in separate steps until the CD is finally full. If you want to reuse the CDRWs, once theyīre full, then you have to blank them again with the appropriate option of burncd. Ciao Siegbert To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message