Converting encrypted hard drives to APFS?

Discussion in 'macOS High Sierra (10.13)' started by Doc69, Sep 2, 2017.

  1. Doc69 macrumors 6502

    Dec 21, 2005
    All my data hard drives, both internal and external on my MacPro5,1, are MacOS encrypted. Will I be able to just convert them from Mac OS Extended to APFS, or will I need to format and erase them?

    Also, is it advisable to convert all my data drives to APFS, including backup drives?
  2. DeltaMac macrumors G3


    Jul 30, 2003
    Spinning hard drives? probably not too important to convert those over to APFS.
  3. mikecwest macrumors 6502a


    Jul 7, 2013
    I think, unless it has changed, you have to unencrypt the drive, convert to APFS, then re-encrypt them. It is a VERY lengthy process, and slow, especially if you are using a spinning hard drive.
  4. Khashoggi macrumors member

    Oct 10, 2007
    You don’t need to unencrypt first. Worked fine for a 2012 fusion drive Mac that had FileVault on to convert to apfs through recovery console disk utility.

    Same password requirements during boot.

    This was as of a beta 8 install.
  5. mikecwest macrumors 6502a


    Jul 7, 2013
    Oh, in the initial beta of High Sierra you did have to....That is nice if it is no longer required.
  6. Doc69 thread starter macrumors 6502

    Dec 21, 2005
    Thanks. However, I would appreciate if someone could confirm if this is also the case for internal and external non-OS drives. A have three new 8TB drives that I need to encrypt, but since that process takes a few days for each drive, if I have to unencrypt them before converting to APFS, then I'll postpone the encryption until after I have upgraded to High Sierra.
  7. ZapNZs, Sep 3, 2017
    Last edited: Sep 3, 2017

    ZapNZs macrumors 68020


    Jan 23, 2017
  8. nutmac macrumors 601

    Mar 30, 2004
    APFS Encrypted with FileVault is very unstable. Upgrade from beta 7 to beta 8 borked my MacBook Pro. So I did a clean install and while everything is seemingly fine, fsck is reporting issues, FileVault status is reporting issues, and Disk Utility locks up.
  9. LarryJoe33 macrumors 65832


    Jul 17, 2017
    I would not convert backup drives to APFS. I would leave them HFS. More flexibility and compatibility options when you need to restore.
  10. lederermc macrumors 6502


    Sep 30, 2014
    I installed High Sierra on a late 2013 MacBookPro(r) with file vault2 encryption without any issues. No need to unencrypted the encrypt.

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9 September 2, 2017