Bit-By-Bit copy of an SD card?

Discussion in 'Computer Software and Operating Systems' started by Superfrick, Jul 16, 2013.

  1. Superfrick
    OP

    Superfrick Member

    Newcomer
    13
    0
    May 9, 2013
    United States
    Allo!

    I have no idea where this specifically should be posted, since it is both a computer question and a handheld question. I have need to make a bit-by-bit copy of a micro SD card and any proprietary formatting it may or may not have to an image that can then be dumped to another micro SD card so the hardware it is plugging into is none the wiser.

    (I'm replacing a broken SD card in a Neo Geo X)

    I have a volunteer with a card to clone. We just need advice on what (preferably free) tools to use to do it and how to make it happen. I've checked, and between us the common operating system is Win7 64.

    Can y'all help?

    XOXO
     
  2. FAST6191

    FAST6191 Techromancer

    pip Reporter
    23,516
    9,335
    Nov 21, 2005
    For the record SD cards do have serials which can be used for AP.

    Still the program you want is called DD, I am not sure if it is stock on linux but it should come with most distros or otherwise be easily installed/in every repo that matters.

    On windows you will need the port of it
    http://www.chrysocome.net/dd
     
    Rydian likes this.
  3. exangel

    exangel executioner angel

    Member
    1,574
    267
    Apr 20, 2010
    United States
    Tucson, AZ
    I use EaseUS Partition Master. (Windows 7 and 8 x64) It is free for personal/home use.. but I bought the professional version on a sale because I use it a lot as a technician.

    I've used it to clone my 3DS XL's SD and expand it from its 4GB to a 16GB Class 10 card without losing anything.

    Edit: http://www.partition-tool.com/personal.htm
     
    Rydian likes this.
  4. Superfrick
    OP

    Superfrick Member

    Newcomer
    13
    0
    May 9, 2013
    United States
    Yea, I'm hoping it doesn't check by serial. And since I'm not modifying the image in any way I'm hoping their AP is limited to making sure the contents of the card are unmolested.

    Thanks!
     
  5. Superfrick
    OP

    Superfrick Member

    Newcomer
    13
    0
    May 9, 2013
    United States
    Great! I'll give both these options a try!
     
  6. nl255

    nl255 GBAtemp Addict

    Member
    2,582
    364
    Apr 9, 2004
    Use a Linux live CD and use the dd command. Be careful though as you can easily use the wrong device name and end up wiping your regular hard drive! I suggest disconnecting the hard drives in your computer before doing it to be safe.
     
  7. Coto

    Coto GBAtemp Addict

    Member
    2,365
    416
    Jun 4, 2010
    Chile
    one thing to keep in mind:

    get panasonic SD formatter, put your card on the card-reader, and do as you were to format the source SD card, do not format the card, this is just to read the overall capacity it has:

    ie: this one is about 1.83GB (0xBDE31500-0x00000000) (1850MB )
    [​IMG]

    Now close SD formatter, put the target SD card you want to copy data, and make sure it has the same or higher capacity the source card had. Or you will have a new SD full of garbage-