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Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!news.mel.connect.com.au!munnari.OZ.AU!news.ecn.uoknor.edu!news.ysu.edu!usenet.ins.cwru.edu!gatech!news.mathworks.com!fu-berlin.de!zrz.TU-Berlin.DE!cs.tu-berlin.de!informatik.uni-bremen.de!nordwest.pop.de!uniol!uni-erlangen.de!news.tu-chemnitz.de!irz401!uriah.heep!news From: j@uriah.heep.sax.de (J Wunsch) Newsgroups: comp.unix.bsd.freebsd.misc Subject: Re: One more try... CD-R writing from FreeBSD Date: 24 Jan 1996 00:05:07 GMT Organization: Private BSD site, Dresden Lines: 48 Message-ID: <4e3t3j$6th@uriah.heep.sax.de> References: <neIKwIf@quack.kfu.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 0.9.3 nsayer@quack.kfu.com (Nick Sayer) writes: > I don't know enough about SCSI to figure out how to use either > scsi(8) or scsi(3) in order to burn a CD-R worm disk. Has this > been done successfully under FreeBSD, and if not, the following > questions come to mind: The driver in 2.1R cannot really do this. This is work in progress, and all i've got so far is a proof-of-concept stage with a single CD-R burnt by the help of a Perl script, calling scsi(8), team(1), and dd(1). The driver needs an overhaul now. > 1. What would the general procedure be for taking either the > output of mkisofs or the output of dd if=/dev/rcd0c (where cd0 > is some other CD target) and having the HP 4020i burn it? I > take it there is more to it than just using dd and making sure to > keep up with the record rate of the writer. dd is too weak. It can only either read or write, this will starve your CD-R. (In particular, since the HP burner has only 1 Meg of cache.) > 2. Does this procedure generalize across different vendors of CD-R > writers? The hairy details of how to setup the burner in order to prepare writing a track differ widely. :-( > 3. Should I configure the HP (if I buy one) as a cd target, worm > target (I suspect this is correct), disk or unknown? worm. > Thanks in advance. If I successfully write a CD, I'll post how I did > it. Of course, step 1 is buying the writer. :-) Better buy a writer with some more cache. Mine has 2 MB, upgradable to 32 MB. (It's a Plasmon RF4100, in case you wonder. Note, the RF4200 are apparently low-cost, to compete with HP, and do also have only 1 MB cache.) -- 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. ;-)