How do I verify the MD5 of my burnt DVD?

noob_nz · 02-16-2006, 04:45 PM

Hi

From my WinXP machine:
I have downloaded SUSE-10.0-EvalDVD-i386-GM.iso and the MD5 sum.
Using MD5 Summer I verified that the ISO was ok

Using Nero 7, I have burnt the image to DVD and used the "verify option". Nero reported everything ok.

I can boot from the DVD and I did a media check, again "no errors".

I then used IsoBuster to create an MD5 from my burnt DVD and it doesn't match the ISO MD5. After some research I gather that the two MD5's might be different (?)

So, how do I verify my burnt DVD against the ISO MD5?
or is there anything else I can do to check I burnt the ISO correctly?

Thanks, Ilija

Edit: doh! wrong distro forum but anyway...

gilead · 02-16-2006, 05:29 PM

I use the following script (saved as copy-raw-cd.sh) to get data from a CD or DVD so that I can burn or check md5sums:

Code:

#!/bin/bash
#
# See <http://www.troubleshooters.com/linux/coasterless.htm>
# Reads directly from the CD or DVD device specified on the command line amd dumps it to STDOUT
#
# Typical usage:
#                copy-raw-cd.sh /dev/dvd > /tmp/dvd-contents.iso
#
# To use this script to check the md5sum of the disk, do the following:
#                copy-raw-cd.sh /dev/dvd | md5sum
#   compare the result with:
#                md5sum /tmp/dvd-contents.iso
#
# Burn the iso with something like:
#                /usr/bin/cdrecord dev=ATA:1,1,0 speed=10 padsize=63s -pad -dao -v -eject /tmp/dvd-contents.iso
#

device=$1

blocksize=`/usr/bin/isoinfo -d -i $device | grep "^Logical block size is:" | cut -d " " -f 5`
if test "$blocksize" = ""; then
	echo catdevice FATAL ERROR: Blank blocksize >&2
	exit
fi

blockcount=`/usr/bin/isoinfo -d -i $device | grep "^Volume size is:" | cut -d " " -f 4`
if test "$blockcount" = ""; then
	echo catdevice FATAL ERROR: Blank blockcount >&2
	exit
fi

command="/bin/dd if=$device bs=$blocksize count=$blockcount conv=notrunc,noerror"
echo "$command" >&2
$command

# ends.

XavierP · 02-16-2006, 06:00 PM

Please do not post the same thread in more than one forum. Picking the most relevant forum and posting it once there makes it easier for other members to help you and keeps the discussion all in one place.

http://www.linuxquestions.org/rules.php