unable extract eMMC content

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Hi all,

I would like to ask for advice on backup my eMMC content. I tried to follow the steps from http://elinux.org/BeagleBone_Black_Extracting_eMMC_contents, but it doesn’t work as it has to be. Here is my procedures:

  1. 8GB uSD card that is FAT32 formatted, partition on the uSD card is marked as active
  2. Download the zip file and extract the contents onto uSD card.
  3. Insert uSD into powered-off BeagleBone Black and apply power to board while pushing the S2 button (all of the 4 LEDs stay blank)
  4. If i apply power to board without pushing the S2 button, it will enter a normal eMMC boot.

Any help would be much appreciated.

Thank you.

Eddy.