linux-kernel - Re: How to format a disk in an USB-Floppy-drive

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Message-ID: <20061119192502.GA23136@1wt.eu>
Date:	Sun, 19 Nov 2006 20:25:02 +0100
From:	Willy Tarreau <w@....eu>
To:	Jan Engelhardt <jengelh@...ux01.gwdg.de>
Cc:	Christian Schmidt <lkml@...add.de>, linux-kernel@...r.kernel.org
Subject: Re: How to format a disk in an USB-Floppy-drive

On Sun, Nov 19, 2006 at 08:15:31PM +0100, Jan Engelhardt wrote:
> 
> On Nov 19 2006 19:44, Willy Tarreau wrote:
> >On Sun, Nov 19, 2006 at 07:25:34PM +0100, Jan Engelhardt wrote:
> >> > [~]>./scsifmt /dev/sdd fmt
> >> > scsifmt: non-sense ioctl error
> >> >
> >> > Didn't work too well, too. Any ideas?
> >> 
> >> 
> >> Does not mkfs suffice?
> >
> >No, he's talking about low-level format. This is necessary before writing
> >anything on a floppy for the first time or after defects have been detected
> >(remember these old ages ?).
> 
> Yeah but the scsi *disk* driver does not seem to handle *floppy* 
> requests (just as it does not handle *cdrom* ioctls). I sense a Missing 
> Feature here.

I'm just wondering whether an SCSI floppy drive should support the hard
disk command set (including low-level fmt). I'm not even sure that our
sd driver supports those commands itself ! Clearly smelling -ENOFEATURE...

Regards,
Willy

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