Subject: Re: 720k floppies no longer supported ?
To: Klaus Heinz <klaus.heinz@onlinehome.de>
From: Frederick Bruckman <fredb@immanent.net>
List: netbsd-users
Date: 04/03/2002 11:53:24
On Wed, 3 Apr 2002, Klaus Heinz wrote:

> Thomas Mueller wrote:
>
> > from Klaus Heinz <klaus.heinz@onlinehome.de>:
>
> Using /dev/fd0b with DD floppy disks (just for a test) does not work at all,
> every track is marked as defective (E). With /dev/fd0f only some of them
> are marked and not the same ones every time I try.
>
> > DR-DOS 7.03 and couldn't make it work until I remembered to add /f:720 to the
> > command line.  Then it worked.  Maybe you need to do something comparable with
>
> I had no problems formatting DD disks with Windows as 720K disks.

MSDOS formatting with interleave seems to be more robust with aging
hardware, even though the tracks are otherwise laid down the same. I
always format with interleave for any disk that's later going to
formatted with MSDOS, because it really seems to work better. All you
have to do, to try that, is to create a floppy tab entry containing
":interleave#2:", and invoke it with "fdformat -t".

Frederick