Subject: Re: external cdrw
From: Robert Serphillips (rserphillips@austin.rr.com)
Date: Thu Feb 28 2002 - 16:24:57 MST
No it's a standard 50 pin SCSI device (SCSI 2 I believe). I also used to have a Zip connected and it worked fine.
-Rob
On Thu, 28 Feb 2002 15:27:04 -0700
John Schmidt <jas@netbrick.com> wrote:
> Do you know if the cdrw is an ultra-scsi device? I have an orb drive
> connected to a PT Pro 200's exernal scsi port and I know this drive is an
> ultra-scsi device. The reason why I ask is that I have had problems reading
> and writing to the orb drive which I believe is due to the nature of the
> scsi2 : 53C94 driver not working reliably with an ultra scsi device. This is
> pure speculation on my part, but I do have an external zip drive which is not
> ultra-scsi and it works fine.
>
> John Schmidt
> jas@netbrick.com
>
>
> On Thursday 28 February 2002 03:09 pm, you wrote:
> > Initially I had my Yamaha 8424 cdrw replacing the cdrom drive. I finally
> > got an external case to I put the origional cdrom back into my 8500. It
> > works fine. So then I connected the cdrw to the external scsi bus. It works
> > fine in MacOS but when I try to mount a cd in linux it says "input/output
> > error". The kernel recognises the drive during boot
> >
> > root@dhcp-499-45.<13>~: dmesg | less
> > .
> > .
> > .
> > SCSI subsystem driver Revision: 1.00
> > scsi0 : SCSI host adapter emulation for IDE ATAPI devices
> > scsi1 : MESH
> > mesh: target 0 synchronous at 5.0 MB/s
> > mesh: rejecting message from target 0: 1 6 4 c 0 3f 1 2
> > mesh: rejecting message from target 0: 1 2 3 1
> > mesh: target 0 synchronous at 5.0 MB/s
> > Vendor: WDIGTL Model: WDE9150 ULTRA3 Rev: 1.30
> > Type: Direct-Access ANSI SCSI revision: 03
> > mesh: target 1 synchronous at 5.0 MB/s
> > Vendor: MATSHITA Model: CD-ROM CR-8008 Rev: 8.0e
> > Type: CD-ROM ANSI SCSI revision: 02
> > mesh: target 3 synchronous at 5.0 MB/s
> > Vendor: SEAGATE Model: ST34502LW Rev: 7503
> > Type: Direct-Access ANSI SCSI revision: 02
> > scsi2 : 53C94
> > Vendor: YAMAHA Model: CRW8424S Rev: 1.0j
> > Type: CD-ROM ANSI SCSI revision: 02
> > Attached scsi disk sda at scsi1, channel 0, id 0, lun 0
> > Attached scsi disk sdb at scsi1, channel 0, id 3, lun 0
> > SCSI device sda: 17873040 512-byte hdwr sectors (9151 MB)
> > Partition check:
> > /dev/scsi/host1/bus0/target0/lun0: [mac] p1 p2 p3 p4 p5 p6 p7
> > SCSI device sdb: 8888924 512-byte hdwr sectors (4551 MB)
> > /dev/scsi/host1/bus0/target3/lun0: [mac] p1 p2 p3 p4 p5 p6 p7 p8
> > Attached scsi CD-ROM sr0 at scsi1, channel 0, id 1, lun 0
> > Attached scsi CD-ROM sr1 at scsi2, channel 0, id 1, lun 0
> > sr0: scsi-1 drive
> > Uniform CD-ROM driver Revision: 3.12
> > sr1: scsi3-mmc drive: 24x/16x writer cd/rw xa/form2 cdda tray
> >
> > I added this to my fstab
> > /dev/cdrom /mnt/cdrom auto
> > noauto,ro,user 0 0 /dev/cdrw /mnt/cdrw auto
> > noauto,ro,user 0 0
> >
> > Created the mount point
> > root@dhcp-499-45.<16>/mnt: la
> > total 24
> > drwxr-xr-x 6 root root 4096 Feb 28 15:26 ./
> > drwxr-xr-x 17 root root 4096 Feb 28 15:24 ../
> > drwxrwxr-x 2 root roberts 4096 Feb 16 19:45 Grinch/
> > drwxrwxr-x 2 root roberts 4096 Oct 9 1998 cdrom/
> > drwxrwxr-x 2 root roberts 4096 Feb 28 15:26 cdrw/
> > drwxrwxr-x 2 root roberts 4096 Feb 6 1996 floppy/
> >
> > and set up the device links
> > root@dhcp-499-45.<19>/dev: la cdr*
> > lrwxrwxrwx 1 root roberts 9 Jan 30 12:17 cdrom -> /dev/scd0
> > lrwxrwxrwx 1 root roberts 9 Feb 28 15:29 cdrw -> /dev/scd1
> > brw------- 1 roberts disk 11, 0 Jul 25 2001 scd0
> > brw-rw---- 1 roberts disk 11, 1 Jul 25 2001 scd1
> >
> > Is there anything I missed? One thing I noticed is that the scsi cd links
> > only go from scd0-scd7. There is no way to distinguish between the internal
> > and external busses. And one last thing, I can eject the cd by right
> > clicking on my desktop simlink so I think the links are set up properly.
> >
> > -Rob
This archive was generated by hypermail 2a24 : Thu Feb 28 2002 - 16:40:34 MST