On Mon, 31 Aug 1998 13:15:42 +0200  Reiner Buehl wrote:

> Hi,
> 
> how can I mount a cd from an external cdrom on SCSI ID4? I tried
> mount -t cd9660 /dev/rz4a /mnt and some other versions of source
> device (rrz4a, rz4c,...) but I get an error message "operation not
> supported by device"?

Just a hunch, but try mounting it read-only.  Add the "-r" flag in
there.

Simon.