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Maxabout.com > Tips
Check Cd ScriptAdded on:8/31/2008 9:12:39 PM
In Linux Tips Rated by 1 users
Imagine, you did the checksum on the ISO and you burned the CD, still you want to double check the integrity of the files on the CD . . . .
- Here is a little script that will do the checksum on your CDs. You do need the original checksum to compare with the outcome of this script.
CODE
$ vi checkcd
"i" ( to put vi in insertmode )
And paste the following lines:
QUOTE (Text @ Script)
#!/bin/sh
#checkcd
device=$1
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
command="dd if=$device bs=$blocksize count=$blockcount conv=notrunc,noerror"
echo "$command" >&2
$command
< Esc > ( put vi in command mode )
"ZZ" ( save the file )
CODE
$ su
< password >
# chmod 755 checkcd
CODE
# ./checkcd /dev/cdrom | md5sum
- This should give you the md5sum after a minute. Check it with the original and then you´re sure the CD is 100% perfect.
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