SD RAM duplication

Submitted by bburgert on Mon, 05/16/2016 - 19:53

Forums:

What is the best way or ways to duplicate a micro SD card formatted with Raspbian?
Can I back up the data on a VM?
Thank you,
-Bob

piborg's picture

piborg

Tue, 05/17/2016 - 09:33

The simplest way we have found under Windows is to simply use Win32DiskImager.
What we normally do is make an image file from the current card and then you can write that image to as many cards as you like.

Under Linux we would suggest using the dd program.
You can clone the SD card by either:

  • If you have two SD card readers do a direct copy between the cards
  • Read the card into a file, then write that file to the new SD card

For any of these you will need the new card to be at least as large as the current one.
Given that not all cards are the exact same size I would suggest using another of the same type to be safe.

If you took an image during the copy you might be able to run it in an emulator.
We have not tried here, but this guide seems quite promising:
http://cubik-tech.blogspot.co.uk/2013/02/raspberry-pi-emulation-on-windo...

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