There are multiple ways to verify CD or DVD burn in Linux.
Using Graphical software[]
Method 1: Using X-CD-Roast)[]
After burning an image, within X-CD-Roast
- Click Verify Tracks on the left side of the window.
- Make sure the Read Device is the CD/DVD drive you are using, and the Image Directory is correct.
- Select image you wish to verify, and click Verify selected tracks
- A second window will popup, and compare the image to the CD/DVD
- It may take some time to scan
- It will show the results at end of scan
Command line[]
- Create the following script
- Make is executable
- chmod 755 verifycd
- Run the script
- verifycd /dev/cdrom image.iso
Script
#!/bin/sh ###################################### # Usage: verifycd CDROM_DEVICE ISO_IMAGE # example: verifycd /dev/cdrom image.iso # # References: http://www.troubleshooters.com/linux/coasterless.htm # http://howto.wikia.com/wiki/Howto_verify_a_burned_CD_or_DVD_image_on_Linux # Inputs DEVICE=$1 IMAGE_FILE=$2 # temp files MD5SUM_ISO='md5sum-file.txt' MD5SUM_CD='md5sum-cdrom.txt' # Checking cd's blocksize and count echo "Checking CD's block size, and count..." blocksize=`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=`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 echo "block size: $blocksize" echo "block count: $blockcount" #Command for reading disk raw_read_command="dd if=$DEVICE bs=$blocksize count=$blockcount conv=notrunc,noerror" #Getting checksums echo "Reading CD and creating check sum..." $raw_read_command | md5sum > $MD5SUM_CD echo "Reading ISO and creating check sum..." md5sum $IMAGE_FILE > $MD5SUM_ISO # Comparing md5 checksums echo "Comparing check sums..." cat $MD5SUM_ISO | while read CODE NAME; do if [ -n "`cat $MD5SUM_CD | grep $CODE`" ]; then echo "Success: $NAME" else echo "Failure: $NAME" fi done #Cleaning up rm -f $MD5SUM_CD $MD5SUM_ISO
Script 2
The previous script may give false negative if the CD/DVD was not properly finished. This one should work even in such cases:
#!/usr/bin/bash if [ $# -ne 2 ]; then echo "Syntax: $0 medium_device iso_file" exit 1 fi dev="$1" iso="$2" if [ ! -b "$dev" ]; then echo "Error: The first argument must be a block device." exit 2 fi if [ ! -f "$iso" ]; then echo "Error: The second argument must be an ISO file." exit 3 fi size="$(stat -c %s "$iso")" echo "Verifying $size bytes..." cmp -n $size "$dev" "$iso" if [ $? -eq 0 ]; then echo "The media and the ISO file are identical."; fi
See Also[]
- X-CD-Roast
- CDR/CDRW
- DVDR/DVDRW