How to migrate from one hard drive to dual hard drives ?

Discussion in 'OS X Yosemite (10.10)' started by rfic, Nov 21, 2014.

  1. rfic macrumors newbie

    Joined:
    Dec 11, 2008
    #1
    I have a 750G hard drive, and my home folder files is more than 360G

    Now I plan to install a new 256G SSD, and move the orig 750G HDD to my optical bay

    Now question is: what's the easiest way to migrate my system to the new 256G SSD while keep home folder files on the 750G HDD?

    I use time machine to back up all files.

    Any suggestion or guide line is appreciated!
     
  2. satcomer macrumors 603

    satcomer

    Joined:
    Feb 19, 2008
    Location:
    The Finger Lakes Region
    #2
    The largest reason is your iTunes Library. You should get at least an external to move it to an external. You could also use a Synology NAS. This video will explain the new easier way to move an iTunes Library to any external.

     
  3. simonsi macrumors 601

    simonsi

    Joined:
    Jan 3, 2014
    Location:
    Auckland
    #3
    Easiest is to find the specific library folders with the large data quantities in them such as iTunes Media, iPhoto etc and leave those on the 750 while moving everything else to the SSD.

    Then you can point iTunes and iPhoto to the libraries on the 750 quite easily in there Prefs.

    This avoids potential permissions issues with having the whole home folder off the boot drive.
     
  4. rfic thread starter macrumors newbie

    Joined:
    Dec 11, 2008
    #4
    thanks

    so what u mean is: manually copy those large size folders to a seperate disk, then delete them in orig 750G HDD, then do clone copy to 256G SSD

    after booting from 256G SSD correctly, then copy back those data to 750G HDD and re-link to HDD

    in fact, my major question is: if i don't delete any files on my orig 750G HDD, is there any simple way to clone my Mac OSX excluding home folder to the new 256G SSD? or u think this could be risky?

    thanks
     
  5. simonsi macrumors 601

    simonsi

    Joined:
    Jan 3, 2014
    Location:
    Auckland
    #5
    Almost.

    Use Carbon Copy Cloner and uncheck iTunes and iPhoto libraries under your user account folder. CCC will warn you if you uncheck anything that makes the resulting clone non-bootable. That should massively cut down the clone drive size so it will fit onto the SSD.

    When the clone has run, boot off the SSD and check everything is ok, you'll need to go into iTunes and iPhoto and select the library and point it to your libraries on the 750.

    When happy and you have a new Time Machine backup, you can tidy up the folder structure on the 750 to reclaim the space, if you move the iTunes media folder or iPhoto library just go into the app prefs and point it to the new location. Keep the iTunes folder structure intact so iTunes can find everything.
     
  6. rfic thread starter macrumors newbie

    Joined:
    Dec 11, 2008
    #6
    great! that's exactly answer i'm looking for

    appreciate!

     
  7. h9826790 macrumors 604

    h9826790

    Joined:
    Apr 3, 2014
    Location:
    Hong Kong
    #7
    Apart from CCC. You may consider the following procedure.

    1) Install the SSD, and move the old HDD to optical bay.

    2) Clean install OSX onto your new SSD (you may simply run the installer directly from HDD)

    3) Boot from SSD

    4) Use migration assistance to migrate the user profile or data from the old HDD.
     
  8. rfic thread starter macrumors newbie

    Joined:
    Dec 11, 2008
    #8

    Thanks.

    For migration assistance, you mean a software or function of Yosemite itself?
     
  9. h9826790 macrumors 604

    h9826790

    Joined:
    Apr 3, 2014
    Location:
    Hong Kong
    #9
    It's a part of OSX.

    When you go through a clean install, it will ask you to setup as a new machine or recover from backups. At that point, it should let you choose to use migration assistance.

    Otherwise, you can find it in "Applications -> Utilities"
     
  10. rfic thread starter macrumors newbie

    Joined:
    Dec 11, 2008
    #10
    Is this migration assistance same as use time machine restore? In fact, I did think of clean install, to avoid any possible "broken system files" get copied to new system.
     
  11. h9826790 macrumors 604

    h9826790

    Joined:
    Apr 3, 2014
    Location:
    Hong Kong
    #11
    Not exactly. Time Machine is another function of OSX. However, Migration Assistance allow you to recover your data from Time Machine backups OR from another HDD with OSX on it (like your case).

    And it allow you to choose what you want to recover. e.g. User profiles only, or applications but WITHOUT system files, etc.

    So, it seems this may be an option which fit your needs.
     
  12. rfic thread starter macrumors newbie

    Joined:
    Dec 11, 2008
    #12
    Thanks for detail explain. I might try this option first.
     

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