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Re: 4th Disc is has crack in it



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On 27-11-2009 15:56, Sthu Deus wrote:
> Thank You for Your time and answer, Simon:
> 
>> You can compare MD5SUMS for the CD provided against the original MD5SUMS
>> (or SHA as well) provided at
>> http://cdimage.debian.org/debian-cd/5.0.3/i386/iso-cd/
> 
> I guess the check will work for iso files only - not burned discs.

	You can use isoinfo to get the number of blocks, then
use a combination of dd and md5sum to check if the checksum
matches.

	Something along those lines:

$ isoinfo -d -i $MEDIA_DEVICE

	You will see two line like:

Logical block size is: 2048
Volume size is: 123456

	Then

$ dd bs=2048 count=123456 if=$MEDIA_DEVICE |md5sum


	You can find more examples and scripts to do that if
you look for some articles on Internet. :)

Kind regards,
- --
Felipe Augusto van de Wiel (faw)
"Debian. Freedom to code. Code to freedom!"
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