2 thoughts on “Do Md5 check on CD/DVD/HDD

  1. Its always better to use the named devices than absolute devices

    md5sum /dev/cdrom
    md5sum /dev/dvd

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

  2. 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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