10.13: Convert HDD from HFS+ to APFS

Discussion in 'macOS High Sierra (10.13)' started by phillytim, Sep 26, 2017.

  1. phillytim macrumors 65816

    phillytim

    Joined:
    Aug 12, 2011
    Location:
    Philadelphia, PA
    #1
    Greetings!

    How do you convert an HDD over to APFS after upgrade?

    I have a single, standard SATA hard drive in my 2011 MBPro, and of course the in-place upgrade to High Sierra did not auto-convert it over to APFS.

    I went to Disk Utility, but the "Convert to APFS" was grayed-out (unusable).

    I booted my MBPro to the Recovery mode, and "Convert to APFS" is still grayed-out.

    So what's next for me to try to get my High Sierra over to APFS, without having to lose data or reformat/restore data?

    Thanks!
     
  2. Cougarcat macrumors 604

    Joined:
    Sep 19, 2003
    #2
    Wait until Apple adds support for APFS for hard drives.
     
  3. GuilleA macrumors regular

    GuilleA

    Joined:
    Jun 8, 2015
    Location:
    Buenos Aires
    #3
    Exactly. APFS had some issues with standard rotational hard drives. They pulled support at the last minute.
     
  4. Morpheo macrumors 65816

    Morpheo

    Joined:
    Feb 26, 2014
    Location:
    Paris/Montreal
    #4
    Support for a boot disk apparently. My installation is on a SSD so no problem there, but I’ve been able to convert my 3 other drives (rotational) without issue.
     
  5. Eligos macrumors newbie

    Joined:
    Jun 28, 2009
    #5
    Just reboot into your Recovery Partition.
    Unmount your hard drive in Disk Utility and then "Convert to APFS" will not be greyed out anymore.
     

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4 September 26, 2017