[plug] CD checking --"dd if=/dev/cdrom | md5sum" or "dd if=/dev/cdrom bs=1 count=23212032 | md5sum"?

Bill Kenworthy billk at iinet.net.au
Thu Sep 13 21:02:07 WST 2001


Actually why bother with "dd"? - "md5sum -b /dev/cdrom" (I had mounted
the cdrom first).  Just did it on one I burnt using gcombust a few
minutes ago.  No problems.

BillK
 

On Thu, 2001-09-13 at 20:33, Andrew Furey wrote:
> > One way to check is to rsync the dd'd image and
> > see if the only effect is at the end of the image,
> > or perhaps use hexdump or similar to examine the
> area
> > in question.
> 
> Or alternatively:
> 
> dd if=image.iso bs=1k
> 
> Then with the number it reports back (xxx blocks in /
> out) :
> 
> dd if=/dev/cdrom bs=1k count=xxx
> 
> If the output of those two is the same, chances are
> all the important parts of the CD are correct.
> 
> Andrew
> 
> =====
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> 
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> 
> 





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