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Do Md5 check on CD/DVD/HDD

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Perform an md5sum on a device, like a CD


dd if=/dev/hdc | md5sum

This entry was posted on Saturday, October 4th, 2008 at 9:22 pm and is filed under Command Line, Linux. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

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2 Responses to “Do Md5 check on CD/DVD/HDD”

  • 1
    Carb0n
    October 11th, 2008 10:22

    Its always better to use the named devices than absolute devices

    md5sum /dev/cdrom
    or
    md5sum /dev/dvd

    Don’t ask me why. Something to do with device access and permissions.

  • 2
    Baylink
    December 27th, 2009 23:07

    And note that it’s usually a good idea to supply a blocksize with something like bs=1M (or even 10M); if you let dd use its default blocksize, you’ll be waiting around forever.

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