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Zip drives





I'm gonna go buy one this weekend........

>From: "Michel Pedreno" <michelp at verfeuil.csd.sgi.com>
>Date: Fri, 7 Jun 1996 12:02:00 -0700
>To: merica at erols.com
>Subject: Zip drives
>
>Using the Zip Drive Under IRIX 5.3
>----------------------------------
>
>NOTE: the following information applies ONLY to IRIX 5.3. After you
>upgrade to IRIX 6.2, you do not need the following information and
>should use the normal desktop tools for Zip disks as described above.
>
>Under IRIX 5.3, mediad does not handle the Zip drive properly. It
>recognizes the drive and puts a "floptical" icon on the desktop, but
>cannot handle formatting, ejecting, or mounting.  As a result, under
>IRIX 5.3 you must eject disks manually, and you must format and mount
>disks using administrator commands mediad(1M), mkfp(1M), mkfs(1M),
>fx(1M), and mount(1M).
>
>Under IRIX 5.3 you should instruct mediad to ignore the Zip under its
>guise as a high-density floppy:
>
>        # mediad -i -r /dev/rdsk/fdsSdZ.3.5hi
>
>This step is only done once; mediad will not look at that device again.
>
>Supposedly you can format a blank disk for use as a Macintosh (HFS)
>file system, using the mkfp(1) command to the "raw" device file:
>
>        # mkfp -t hfs /dev/rdsk/dksSdZvol
>
>However, this frequently does not work; the command typically reports
>"bad sector" errors regardless of whether the -x option is used or not.
>It is advisable to format Zip disks for HFS using a real Macintosh or
>else using an IRIX 6.2 system.
>
>To mount any Zip disk under IRIX 5.3, create the mount point that
>is used by mediad under IRIX 6.2:
>
>        # mkdir /zip
>
>To mount an HFS disk under IRIX 5.3, apply mount(1M) to the raw
>disk volume partition:
>
>        # mount -t hfs /dev/rdsk/dksSdZvol /zip
>
>You can then load and save files from /zip exactly as if it were an
>IRIX filesystem.
>
>To format a disk for use as an IRIX (EFS) file system, apply fx to
>initialize the volume header (not to do a low-level format), and then
>use mkfs to create the filesystem.  Both commands are applied to the raw
>device file partition 7:
>
>        # fx -x -c 'dksc(S,Z)' INITIALIZE
>        # mkfs -t efs /dev/rdsk/dksSdZs7
>
>The fx command produces numerous spurious error messages; ignore them.
>
>To mount an EFS-formatted Zip disk under IRIX 5.3, mount the block (not
>the raw) device partition 7:
>
>        # mount -t efs /dev/dsk/dksSdZs7 /zip
>
>The disk can then be used like any other mounted file system.
>
>TO REPEAT:
>  mount an HFS-formatted disk as the *raw* device /dev/rdsk/dksSdZvol
>  mount an EFS-formatted disk as the *block* device /dev/dsk/dksSdZs7
>
>Mounting the raw device as an EFS filesystem may appear to work
>but it is has been reported as causing kernel panics.
>
>--
>
>
>
>                                Michel Pedreno
>                          =+=+=+=+=+=+=+=+=+=+=+=+=
>                          =    michelp at sgi.com    +
>                          +    1-800-800-4744     =
>                          +=+=+=+=+=+=+=+=+=+=+=+=+
>
>