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iso download and burning problem

Posted on 2006-07-10
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Last Modified: 2010-04-20
hi, how can I make sure that all the iso isnt corrupted after download and burn into cds?

i have tried downloading the iso, and burn more than 2 times, but only my disc 1 PASSED, the rest FAILED....
i am using isoburn to burn the iso image.

please help...
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Question by:InNoCenT_Ch1ld
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psimation earned 2000 total points
ID: 17079193
You can mount the iso images to a loop device before you burn them so you can test them.

From a prompt do this:

mount -o loop /cdimage/cdimagename.iso /mnt/mountpoint

Then, you can:

cd /mnt/mountpoint

Your CD IMage will then be mounted in that folder as if it were mounted from a CD-Device.

BUT, before you even get to all that, MD5SUM is your bestest friend.

Most CD-Images you download from the net will be distributed alongside an MD5SUM (checksum). It's usually a separate txt file that simply contains a long hexadecimal number sequence.

Simply download that file and open it in a text editor.

Then run: md5sum yourcdimage.iso
Now compare the output with the numbers in the text file. ( tip, you don't have to sit there and compare each and every number, usually, if the first 4 and the last 4 digits match, the ISO you downloaded will be 100%

If they don't match, then your doanlowd was not successful.

If they match, and you have problems with the burned disks, you either have faulty media, or you cd-writer device is faulty.

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by:InNoCenT_Ch1ld
ID: 17079203
>>md5sum yourcdimage.iso
this can only be run on Linux or windows?
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LVL 17

Expert Comment

by:psimation
ID: 17079214
You can run that particular command only on Linux, however, there are many MD5SUM checking tools for Windows. On Windows I use "FastSum", just google for md5sum checkers
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Author Comment

by:InNoCenT_Ch1ld
ID: 17079223
ok la, i think that should be enough info for me to work on.. tks ;-)
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