[Cialug] rip an ISO

[Paul Gray]

On Mon, Nov 07, 2005 at 05:50:57AM -0600, Dave Weis wrote:
> Paul Gray wrote:
> >
> >dd bs=`isoinfo -i /dev/cdrom -d| grep "block size is" | awk -F": " '{print 
> >$2}'` if=/dev/cdrom count=`isoinfo -i /dev/cdrom -d |grep "Volume size"| 
> >awk -F": " '{print $2}'` | md5sum
> >
> >If the md5sum matchs, substitute 'of=debian.iso' for the final pipe to 
> >md5sum.
> 
> Does that just skip over the header stuff burned on the disk and md5sum 
> the data portion?

Yes and no.  All it does is the same original dd command setting the block
size to 2k and doesn't assume EOF=end of data.

I'm certain that the same md5sum would be generated with:
  dd if=/dev/cdromof=debian.iso bs=2k

It's always better to ask (the iso image) than assume things (like block
size and number of blocks).

-- 
Paul Gray                                         -o)
323 Wright Hall                                   /\\
University of Northern Iowa                      _\_V
Message void if penguin violated ...  Don't mess with the penguin
No one says, "Hey, I can't read that ASCII attachment ya sent me."
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