Anyone going from HFS+ to APFS on external drives

Discussion in 'macOS Mojave (10.14)' started by nicholasg, Sep 25, 2018.

  1. nicholasg macrumors member

    Joined:
    Sep 12, 2011
    #1
  2. grumpywino macrumors newbie

    grumpywino

    Joined:
    Oct 5, 2016
    #2
    I boot from an external drive so ended up, fro recovery, reformatting my ssd and then doing a clean install. I haven't yet looked at Time Machine, I used it migrate all my stuff over and it's still sat there with all my HFS+ High Sierra backups. I have some more reading to do….
     
  3. I Need a Drink macrumors regular

    Joined:
    Oct 14, 2013
    #3
    I just installed an external USB SSD yesterday for my 2013 iMac. I formatted it as APFS, since it is my understanding that Mojave requires APFS not HFS+. I really only have about 12 hours of use, but it seems to be OK so far. Time will tell.

    As for Time Machine, I think I read that it has to be HFS+ on an external drive. I use a WD MyCloud network drive for Time Machine since I have 3 Macs to back up, so I don't really know about the external for TM.
     
  4. Morpheo macrumors 65816

    Morpheo

    Joined:
    Feb 26, 2014
    Location:
    Paris/Montreal
    #4
    It does but that's just for the installation partition, or startup disk, or whatever you want to call it ;). HFS+ is still available and supported in Mojave, but yes the OS requires APFS.
     
  5. flur macrumors 68020

    flur

    Joined:
    Nov 12, 2012
    #5
    I migrated one external drive to APFS, because when I switched to HS (only two weeks ago), I started to have issues with that drive. I haven't had any issues since, though I haven't tried it since installing Mojave, as I just did that tonight.
     
  6. Fishrrman macrumors P6

    Fishrrman

    Joined:
    Feb 20, 2009
    #6
    I need a drink wrote:
    "I formatted it as APFS, since it is my understanding that Mojave requires APFS not HFS+."

    Your "understanding" is completely wrong.
    Mojave runs fine on HFS+.

    I boot and run Mojave from an EXTERNAL USB3 SSD formatted for HFS+.
    As I said, it runs fine.
     
  7. antisect macrumors newbie

    Joined:
    Sep 27, 2018
    #7
    Mine's working fine on HFS too, but...
    Ive been reading that mojave os updates require APFS and wont work on HFS, i dont know if its correct or not plus we've not had os updates yet.
     
  8. Fishrrman macrumors P6

    Fishrrman

    Joined:
    Feb 20, 2009
    #8

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7 September 25, 2018