SUMMARY: Can't format a floppy in AStation200

From: Russell A. Fink <rfink_at_gstarws11.aerosys.loral.com>
Date: Wed, 5 Apr 1995 16:10:56 -0400

Hello,

This person's response is a sure-fire way to do what I wanted to
do:

                From REPOND_at_elsic.epfl.ch Wed Apr 5 12:19:48 1995

                If you have a 1.44Mb floppy, you have to do the following:

                1) /sbin/fddisk -fmt -f /dev/rfd0a

                2) /sbin/newfs /dev/rfd0a rx26hd

                        (replace rx26hd by rx26 if you have a 2.88Mb floppy)

                3) mount /dev/fd0a /mnt

This works very well. You can actually fsck the floppy and treat it
just like a normal UNIX filesystem disk.

Only trouble is that you need to be root to use mount. The idea was
to allow users at a workstation to copy whole hierarchies to the floppy
device by being able to mount it.

The workaround for that is to treat the floppy like a tape device,
give users permissions to /dev/fd0a, and use tar or cpio to transfer
data to the floppy. This tar command works really well for transferring
directories over multiple disks:

      tar -cvf /dev/fd0a -S 2880b myhierarchy ... ...

The "2800b" refers to the size of the 1.44Mb floppy, as it is 2880 512-byte
blocks large.

The other way to go is to have users use the MTOOLS package (available on
lots of places, try gatekeeper.dec.com), and treat the disk like a DOS
disk. This has the added flexibility that you can read your UNIX files
from DOS and vice-versa, but the drawback is having to clip all your names
down to 8 characters, and going on a Virgilian quest to copy contents
of directories over there.

Thanks to all who responded.

Russ Fink
Received on Wed Apr 05 1995 - 16:11:03 NZST

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