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-   -   Wrong md5sum after dd (

goossen 10-19-2011 07:23 AM

Wrong md5sum after dd
I downloaded an ISO (linux installer) file, burnt it to a DVD and installed. Everything went OK.

Then I did:

dd if=/dev/cdrom of=file.iso
The md5sum hash is not the same of the downloaded ISO, but the DVD is OK, at least I could install linux successfully from it.

What I'm missing here ? :confused:

H_TeXMeX_H 10-19-2011 07:44 AM

The right command to use is:


cmp file.iso /dev/cdrom
The reason why md5sum doesn't match is because the image is padded with zeros after it is burned.

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