[comp.sys.next] Floppy Disk Problems

cgb@count0.uucp (cgb) (04/18/91)

I have been following the thread on people having problems
formatting the internal floppy and would like to put my $.02's
worth of observations in.

1.  When you insert a DOS formatted floppy you will ALWAYS
see the console msgs.
> Bad disk label magic number
> fd: UNABLE TO READ DISK.
Thats OK because the system was looking for a UNIX formatted disk
when it sent those messages to the console.   It goes ahead and
mounts the DOS disk afterwards.

2. IF you have already formatted a floppy UNIX style buildDOS will
not reformat that disk as a DOS disk. In fact it will eject the
UNIX floppy and ask for another.  Bug or Feature I don't know but
the only way I've been able to get around it is to format the disk
on my MAC, I guess the MAC scrambles things up enough to keep the
system from seeing the floppy as a UNIX floppy. The reverse seems
to be true as well.

3.  If maddness overcomes you and you format your 2.88 disk on a DOS
machine (it will format as a 720 because of the hole location)  I've
found that another trip to the MAC is in order.   This is the situatuion
where the NeXT will SWEAR the the 2.88 is mangled beyond fixing and
the format will ALWAYS fail.

Misc:   If you don't have access to a MAC I suppose a de-gausser
(read bulk tape eraser) would work.   I have not tried this.

 


-- 
Cats, no less liquid than their shadows,
      Offer no angles to the wind.
They slip, diminished, neat, through loopholes
      Less than themselves.