On Tue, 27 Mar 2001, Chad W. Skinner wrote:
>
> > Try:
> >
> > $ dd if=/dev/cdrom of=cdrom.iso bs=1M count=90
>
> Is this not just making and image of the first 90MB of the disk? What if the
> file is bigger or smaller than I think?
>
In that case don't provide the "count=", and use 512 byte blocks:
dd if=/dev/cdrom of=cdrom.iso bs=512
This is going to be slower than reading 1MB blocks at a time, but it works
regardless of the same of the file.
{\footnote To get optimum performance you can increase the "bs" value to
match the CD's block size.}
cheers,
Hossein
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