[clug] md5sum and verifying DVD

Carlo Hamalainen carlo.hamalainen at gmail.com
Thu Jul 28 00:34:48 GMT 2005


I have a Mondo ISO that I've burned to DVD using growisofs. When I
verify the DVD against the iso with 

cmp 1.iso /dev/hdc

it looks like the DVD is good, but when I do the md5sums I get different

c at t40:~$ md5sum 1.iso
d7563e63f8e6306de0466cd3b3576571  1.iso

c at t40:~$ md5sum /dev/hdc
6b76ba56f97770f641012f156eba3a25  /dev/hdc

Why are they different? What am I doing wrong here?

This is on an IBM T40 laptop, kernel.


-- Carlo

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