title: DD Image larger than source
body: <p>I created an image file using dd on my disk /dev/sda which fdisk says it is 500107862016 bytes in size. The resulting image file is 500108886016 bytes which is exactly 1024000 bytes larger.</p>
  
  <ol>
  <li>Why is the image file 1MB larger than my source disk? Is there something related to the fact that I specified bs=1M in my dd command?</li>
  <li>When I restore the image file onto another identical disk, I get "dd: error writing ‘/dev/sda’: No space left on device" error. Is this a problem? Will my new disk be corrupted?</li>
  </ol>