SUMMARY: UFS on a floppy disk

From: Arno Hahma <arno_at_nitro.pp.utu.fi>
Date: Wed, 25 Mar 1998 10:25:07 +0200 (EET)

Thanks to

Susan Rodriguez Bernd Patolla
Girish Phadke Knut Hellebø
Howard Thomas Bill Bennett
Dr. Tom Blinn Valentin Nakov
Isidoro Sepe H. Scherrer
Allan E Johannesen

for quick answers about the problem!


The solution to create UFS on a floppy with DU 4.0D:
explicitly specify the sector size in the newfs command.

I.e.

newfs -S 512 <other options> /dev/fd0c

Of course, the floppy needs to be formatted first (DOS format works
just fine or use fddisk, if the floppy is unformatted) and
disklabeled (disklabel -wr /dev/fd0c rx23). rx23 is the
/etc/disktab entry for a 1.44 MB 3,5" floppy disk.

Problems in creating UFS on a floppy appear to be a bug in 4.0D.
It used to work in 4.0B without the sector size specification.

Thanks to Dr. Tom Blinn for filing a QAR report about the problem!

ArNO
    2
Received on Wed Mar 25 1998 - 09:25:19 NZST