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Old 02-16-2006, 04:45 PM   #1
noob_nz
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Registered: Feb 2006
Location: Christchurch, New Zealand
Distribution: WinXP, SUSE 10.0
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How do I verify the MD5 of my burnt DVD?


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...

Last edited by noob_nz; 02-16-2006 at 04:52 PM. Reason: wrong forum
 
Old 02-16-2006, 05:29 PM   #2
gilead
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Registered: Dec 2005
Location: Brisbane, Australia
Distribution: Slackware64 14.0
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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.
 
Old 02-16-2006, 06:00 PM   #3
XavierP
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