5 inch floppies

[Les Mikesell]

On Sat, 2005-09-03 at 16:21, Michael Hennebry wrote:

> > >cp /dev/fd0 floppy.on.hard ?
> >
> > It can be different if you are coping with errors, and need to do it by
> > sectors.
> 
> dd if=/dev/fd0 of=floppy.on.hard noerror what_other_options ?
> 
> Would bad sectors read as 0s?

Dd normally exits on errors, but you can use the skip option
to try to get subsequent parts.  You might try ddrescue:
http://www.gnu.org/software/ddrescue/ddrescue.html

> One of the things that info dd does not make
> clear is what affect, if any, the block options
> have on what is physically written to a device.
> What effect, if any, does the input block size
> (physical or ibs) have on the output?

The block size options are mostly needed for tapes where
the read()/write() size must match the physical block size
set on the device or it won't work at all. On other
devices it might make a difference in speed.

-- 
  Les Mikesell
    lesmikesell at gmail.com