On 6/9/05, Gus Wirth <[EMAIL PROTECTED]> wrote:
> At 00:15 06/09/2005 -0700, Ralph Shumaker wrote:
> >I seem to recall something about "dd" to create a floppy from a
> >downloaded "*.img" file. "man dd" doesn't seem to give me the info I need.
> >
> >Can anyone show me the recipe? Please?
>
> $ dd if=your-disk-image.img of=/dev/fd0 bs=512
>
> where
> dd = command
> if = input file
> of = output file (remember, just about everything is treated like a file,
> even if it's a device)
> bs = block size
>
> You probably don't really need the block size part, as all the bytes will
> still make it onto the the disk. One thing you should do before putting the
> image on the floppy is to format the floppy and check it for bad blocks.
> That way you won't have any missing data when the image is transferred.
Note that the default block size of dd(1) is 512, so you don't have to
specify it. Some hardware/software combinations copy floppies faster
if you specify "bs=18k" which is the amount of data that can be read
from a floppy without moving the head. But nowadays Linux buffering
seems to just read/write everything all at once. Be sure to wait for
the light on the floppy drive to go out, indicating that it is
finished doing its thing, because the Linux command-line prompt will
return to you as soon as the data is in a buffer ready to go, but
before the actual output transfer is finished.
carl
--
carl lowenstein marine physical lab u.c. san diego
[EMAIL PROTECTED]
--
[email protected]
http://www.kernel-panic.org/cgi-bin/mailman/listinfo/kplug-list
