Lane Lester wrote:
> 
> I finally am able to read both the CDRW and the Zip drive. The answer
> seems to have been a combination of all you guys' advice.

Good!

>  hdd:<3>ide-scsi: hdd: unsupported command in request queue (0)
> end_request: I/O error, dev 16:40 (hdd), sector 0
>  unable to read partition table

I thought ZIP disks came prepartitioned, with partition 4 available. 
Seems like this one is not prepartitioned?   Or was there no disk in
it?   See below.

> scsi1 : SCSI host adapter emulation for IDE ATAPI devices
> scsi : 2 hosts.
>   Vendor: IOMEGA    Model: ZIP 100           Rev: 13.A
>   Type:   Direct-Access                      ANSI SCSI revision: 00
> Detected scsi removable disk sda at scsi1, channel 0, id 0, lun 0
>   Vendor: Memorex   Model: CDRW-2216         Rev: 1.0b
>   Type:   CD-ROM                             ANSI SCSI revision: 02
> Detected scsi CD-ROM sr0 at scsi1, channel 0, id 1, lun 0
> sr0: scsi3-mmc drive: 16x/16x writer cd/rw xa/form2 cdda tray

This documents the install of the sg kernel module

> sda: Write Protect is off
>  sda: sda1 sda2 sda3 sda4

Now it IS able to read the ZIP disk partition table.  This says that
your ZIP disk IS pre-partitioned.

> And the above gave me the clue I needed for the zip drive: sda is what
> it wants to see in fstab:
> /dev/sda /mnt/zip vfat exec,user,noauto,rw,suid,dev 0 0
> 
> I got tired of all the deleting and relinking to /dev/zip, so I just
> put /dev/sda in fstab.

Should have been sda4, surely?  sda is the device (you cannot mount
devices), sda4 is the partition (you can mount partitions).

-- 

Regards,

Ron. [AU] - sent by Linux.

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