Cloning a Macintosh HD to a bootable External drive?

Discussion in 'OS X Yosemite (10.10)' started by Hexley, May 12, 2015.

  1. Hexley macrumors 6502a

    Joined:
    Jun 10, 2009
    #1
    I have the following

    Late 2012 27-inch iMac Core i7
    OS X Yosemite 10.10.3
    4TB WD MyBook USB 3 External Hard Drive

    How do I clone the Macintosh HD of my iMac and create a bootable copy onto the 4TB external drive?

    Only thing I know to do is a Time Machine backup.
     
  2. redheeler, May 12, 2015
    Last edited: May 12, 2015

    redheeler macrumors 603

    redheeler

    Joined:
    Oct 17, 2014
    #2
    You can use Disk Utility or Carbon Copy Cloner to do this. First, in Disk Utility, make sure to create a new partition on the external drive, and that the Partition Map Scheme is set to GUID Partition Table so you can boot off it. Then, to clone using Disk Utility, click the Restore tab with your Macintosh HD partition selected, drag the partition you created on your external into "Destination", and click Restore.
     
  3. m4v3r1ck, May 13, 2015
    Last edited: May 13, 2015

    m4v3r1ck macrumors 68020

    m4v3r1ck

    Joined:
    Nov 2, 2011
    Location:
    The Netherlands
    #3
    Cloning a Macintosh HD to a bootable External drive?


    Carbon Copy Cloner is my #1 choise for making bootable clones on a eSATA external RAID1 HDD from my 10.10.2 SSD. While doing so - on a hourly base - it will save ALL CHANGED files in seperate (date&time stamped) Folders on the external drive(s). This may come in handy for restoring e.g. individual working files!

    Give the trial version of Carbon Copy Cloner @ http://bombich.com a shot, to see if it may meet your needs and likings!

    Cheers
     
  4. Fishrrman, May 13, 2015
    Last edited by a moderator: May 22, 2015

    Fishrrman macrumors G3

    Joined:
    Feb 20, 2009
    #4
    This procedure is so easy, that AFTER you do it, you will think to yourself, "why did I start a topic about this?"

    What to do:
    Download CarbonCopyCloner from here:
    http://www.bombich.com/download.html
    CCC is FREE to download, and it is FREE to use for the first 30 days.

    You can also use SuperDuper (SD will do a "full clone" of one drive to another for free, forever, without registering).

    Launch CCC.

    Pick your source drive (internal) on the left.
    Pick your target drive (external) on the right.

    Let CCC do its thing.

    Done.
     
  5. m4v3r1ck macrumors 68020

    m4v3r1ck

    Joined:
    Nov 2, 2011
    Location:
    The Netherlands
    #5

    This is a NOT DONE answer on MR! If OP may come to your stated conclusion, (s)he will post that!

    Nevertheless Cheers
     

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