Problem with mounting sda zip drive

[Benjamin Sher <delphi123@zebra.net>]

Dear friends:

Thanks to your help, I am making progress step by step. My next issue has to 
do with my zip drive. When I try to mount it, I am told that I need to supply 
the file system. Please see below. Would appreciate your help.

Benjamin

sher@localhost:~$ cat /etc/fstab
# /etc/fstab: static file system information.
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
proc            /proc           proc    defaults        0       0
/dev/hdb1       /               ext3    defaults,errors=remount-ro 0       1
/dev/hdb5       none            swap    sw              0       0
/dev/hdc        /media/cdrom0   iso9660 ro,user,noauto  0       0
/dev/hdd        /media/cdrom1   iso9660 ro,user,noauto  0       0
/dev/fd0        /media/floppy0  auto    rw,user,noauto  0       0
/dev/sda        /media/usb0     auto    rw,user,noauto  0       0
sher@localhost:~$

sher@localhost:~$ su
Password:
localhost:/home/sher# mount /dev/sda -t auto /media/usb0
mount: you must specify the filesystem type
localhost:/home/sher#