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#50608 - 12/06/18 03:02 PM from HFS to APFS and back again
Virtual1 Offline


Registered: 08/04/09
Loc: Iowa
I found myself needing to convert groups of computers from APFS to HFS, and the later to convert others from HFS to APFS. Just look around online and try to find how to do that without doing things like backing up and reformatting the hard drive. (hint: nobody knows how to, all instructions start with "open disk utility and erase your hard drive"... SERIOUSLY!)

Anyway, it took a chunk of yesterday to get the script working to convert from APFS back to the more sane HFS, and I just finished figuring out the obscenely complicated process of converting back to APFS. (without reinstalling the os!)

If anyone is interested in how this works, let me know. It's enough to make people comfortable with terminal wince, and AFAIK nobody seems to have figured this out previously, at least not that they've said online.
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#50612 - 12/06/18 06:12 PM Re: from HFS to APFS and back again [Re: Virtual1]
artie505 Online


Registered: 08/04/09
Same as you, the only option I've ever seen, including in Apple's own instructions, for converting from APFS back to HFS+ involves reformatting your drive, but "Convert [HFS+] to APFS" is an option in Disk Utility.

Thanks for the offer, but no thanks. smile
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The new Great Equalizer is the SEND button.

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#50614 - 12/07/18 04:03 AM Re: from HFS to APFS and back again [Re: Virtual1]
jchuzi Online


Registered: 08/04/09
Loc: New York State
I cloned my APFS volume to an external drive, and the external was MacOS Extended (Journaled). Assuming that this is the same as HFS (and I don't know that), it might be possible to clone back to convert the internal to HFS.

Just a suggestion...
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Jon

OS 10.14.2, iMac Retina 5K 27-inch, late 2014, 3.5 GHz Intel Core i5, 1 TB fusion drive, 16 GB RAM, Epson SureColor P600, Photoshop CC, Lightroom CC, MS Office 365

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