Need quick reply about external SSD in enclosure for booting Mac OS on iMac

Discussion in 'iMac' started by MartinAppleGuy, Mar 16, 2017.

  1. MartinAppleGuy macrumors 68020

    MartinAppleGuy

    Joined:
    Sep 27, 2013
    #1
    I'm planning on buying an MX300 Crucial 1TB SSD for my iMac (that has a HDD in it) and then buy an external 2.5" USB 3.0 enclosure. Will this work for running Mac OS off and having it as the boot drive?
     
  2. keysofanxiety macrumors 604

    keysofanxiety

    Joined:
    Nov 23, 2011
    #2
    Yes.
     
  3. MartinAppleGuy thread starter macrumors 68020

    MartinAppleGuy

    Joined:
    Sep 27, 2013
    #3
    Any special enclosure I will need for this type of SSD to make it bootable?
     
  4. keysofanxiety macrumors 604

    keysofanxiety

    Joined:
    Nov 23, 2011
    #4
    Nope, any USB>SATA dock/enclosure would work fine.

    Hold Alt on startup when it's plugged in. Hold CTRL when you have the volume list visible & select the external disk with the arrow keys. The arrow underneath the volume will change icon. Then press Enter. This will boot into it & set it as your default boot drive.
     
  5. MartinAppleGuy thread starter macrumors 68020

    MartinAppleGuy

    Joined:
    Sep 27, 2013
    #5
    So this would work? I just want it to boot without holding ALT every time.

    ORICO Aluminium 2.5" Hard Drive Enclosure USB 3.0 with UASP for 2.5 Inch SATA III HDD and SSD, Supporting Samsung 750 EVO / 850 EVO / 850 PRO, SanDisk SSD PLUS / Ultra II, Crucial MX300, Kingston, Seagate, WD and More - Grey (2518S3-GY) https://www.amazon.co.uk/dp/B01HH2O2V6/ref=cm_sw_r_cp_tai_MLRYyb9FQ6V5F
     
  6. keysofanxiety macrumors 604

    keysofanxiety

    Joined:
    Nov 23, 2011
    #6
    Yeah that'll work fine.
     
  7. MartinAppleGuy thread starter macrumors 68020

    MartinAppleGuy

    Joined:
    Sep 27, 2013
    #7
    Many thanks! Will be ordering today and getting it tomorrow :) first time I shall have had an SSD equipped machine!
     
  8. nambuccaheadsau macrumors 6502a

    nambuccaheadsau

    Joined:
    Oct 19, 2007
    Location:
    Nambucca Heads Australia
    #8
    Even better Silicon Power makes a 240GB Thunderbolt SSD which requires no caddy or case. Just select it as the boot drive in System Preferences. If you keep an OS on the internal be aware Software Updates will still go to the internal and a second update to the Thunderbolt.
     
  9. Fishrrman macrumors G4

    Fishrrman

    Joined:
    Feb 20, 2009
    #9

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