dd wont work

[Bill Schoolcraft]

At Mon, 26 Jun 2006 it looks like Lowell Gilbert composed:

> Migs <jc.devilla at gmail.com> writes:
> 
> > I've already looked around and found that dd will work on cd's only if
> > the bs=2k argument is present.
> >
> > However, ive tried it both without (before knowing this) and with the
> > argument, but I still cant pick up an image of the cd.
> >
> > I know that this should work:
> >
> > dd if=/dev/cd0 of=~/file.iso bs=2k
> >
> > but it doesn't. I always get a
> >
> > dd: /dev/acd0: Invalid argument
> > 0+0 records in
> > 0+0 records out
> > 0 bytes transferred in 0.000225 secs (0 bytes/sec)
> >
> > I'm on 6.1 releng by the way, and the cd im trying to dd is
> > knoppix. My combo drive is a 'LITE-ON ' 'COMBO SOHC-5236V' 'R$09'
> > Removable CD-ROM thats a slave on ide0. What else should I be looking
> > at?
> 
> Are you actually copying from cd0, or acd0?
> Are you sure the problem isn't with the CD itself?

That happens to me too, I have a Plextor DVD-RW/CD-RW drive.

I have followed the device too to it's link in /dev/* and zilch.

I was trying to "dd" an umounted FreeBSD iso to file.

-- 
     Bill Schoolcraft || http://wiliweld.com
                      <> 
  "To be unhappy over what one lacks is to 
     waste what one already possesses."