Date   : Tue, 14 Apr 2009 09:05:22 -0500
From   : jules.richardson99@... (Jules Richardson)
Subject: Writing BBC Disc Images on Linux

Andrew Benham wrote:
> I was going to reply to the previous message saying that I hadn't seen
> the /dev/fd0* device files for years, but then I looked on the CentOS 5.3
> box I'm using at work and:

Aha!

OK, so e.g.:

   mknod -m 0660 /dev/fd0u720 b 2 16

... will create a 720k device file*, probably needing a chown/chgrp after to 
set up the ownership. I can't quite recall how the device mapping goes, now - 
I think the one with device minor of 24 is probably "DD disk in a HD drive" 
(i.e. 720KB in PC terms), whilst device minor 16 as above is "DD disk in a DD 
drive".

* I have no idea if the logic to support all this is still in the kernel, 
though - although chances are good that it is, and they just dropped automatic 
creation of the less-common floppy device files in the common Linux distros as 
the number of files in /dev was getting pretty huge.

cheers

Jules