From owner-freebsd-scsi Wed Jan 24 11:57:31 1996 Return-Path: owner-freebsd-scsi Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id LAA15762 for freebsd-scsi-outgoing; Wed, 24 Jan 1996 11:57:31 -0800 (PST) Received: from irz301.inf.tu-dresden.de (irz301.inf.tu-dresden.de [141.76.1.11]) by freefall.freebsd.org (8.7.3/8.7.3) with SMTP id LAA15715 for ; Wed, 24 Jan 1996 11:56:34 -0800 (PST) Received: from sax.sax.de by irz301.inf.tu-dresden.de (8.6.12/8.6.12-s1) with ESMTP id UAA19029; Wed, 24 Jan 1996 20:53:41 +0100 Received: by sax.sax.de (8.6.11/8.6.12-s1) with UUCP id UAA05117; Wed, 24 Jan 1996 20:53:40 +0100 Received: (from j@localhost) by uriah.heep.sax.de (8.7.3/8.6.9) id UAA11476; Wed, 24 Jan 1996 20:36:17 +0100 (MET) From: J Wunsch Message-Id: <199601241936.UAA11476@uriah.heep.sax.de> Subject: Re: HP CD Writer To: freebsd-scsi@freebsd.org Date: Wed, 24 Jan 1996 20:36:17 +0100 (MET) Cc: fcawth@jjarray.umd.edu (Fred Cawthorne) Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch) In-Reply-To: <199601241730.MAA00248@jjarray.umd.edu> from "Fred Cawthorne" at Jan 24, 96 12:30:23 pm X-Phone: +49-351-2012 669 X-Mailer: ELM [version 2.4 PL23] MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Sender: owner-freebsd-scsi@freebsd.org Precedence: bulk As Fred Cawthorne wrote: > > I just installed an HP Surestore CD writer in my FreeBSD-2.1R box. > I have a couple of questions: > > 1. > It is probed like a regular scsi CD rom, i.e. : > (ncr0:6:0): "HP C4324/C4325 1.20" type 5 removable SCSI 2 > cd1(ncr0:6:0): CD-ROM cd present.[330928 x 2340 byte records] > Is this correct?? Will I be able to issue scsi commands to the cd1 > device? (i.e. shouldn't I be using the worm device to write CD's) You need an ``override entry'' in scsiconf.c. Most likely: { T_WORM, T_WORM, T_REMOV, "HP", "C4324/C4325", "*", "worm", SC_ONE_LU }, right after the entry for the YAMAHA CDR100. Let us know if it is found as worm0 then. For FreeBSD 2.1, you also need to rebuild your system with the ``options NEW_SCSICONF'' (verify my spelling in scsiconf.c, please). > 2. I can mount a cdrom, and it seems to work fine, but it is slower than > my 2x toshiba cdrom drive. I thought this thing was supposed to read > at 4x speed. No idea on this. > 3. When I initially tried to mount a cdrom, I got a bunch of scsi > error messages. > Jan 24 11:55:41 jjarray /kernel: sd1(ncr0:1:0): UNIT ATTENTION asc:29,0 > Jan 24 11:55:41 jjarray /kernel: sd1(ncr0:1:0): Power on, reset, or bus device reset occurred As it stands: a unit attention. These drives tend to generate a lot of them. I'm afraid you won't be very successful unless you've also got a copy of the SCSI-2 documentation... Even in printed form, it's not always very easy to understand. -- 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. ;-)