I formatted my External Drive as AFPS - now I can use it for Time Machine?


macrumors 6502
Original poster
Sep 24, 2010

I stupidly formatted by G-Drive SSD external drive as an APFS (as I thought this would make it faster) - when I tried to do a time machine back up on it - the back Up failed as the Time Machine needs to use Mac OS Journaled feel extensions...

However - now when I try to re-format/earse the SSD drive as Mac OS Journaled - it ONLY gives me the options to Erase it as APFS or APFS Encrypted etc - the options for all the other formats aren't there!! Arghhh

So how do I now format this Disk as an Mac OS Journaled please!!???



macrumors Core
Feb 20, 2009
You could try using the terminal.
Not sure what the correct commands are.

Or... take the drive to a PC, and initialize it to a Windows format.
Then, bring it back to the Mac, and perhaps then Disk Utility will offer you the option to erase it to Mac OS extended with journaling enabled (HFS+)

One more reason why I stay away from APFS right now...


macrumors 68000
Nov 9, 2015
Honolulu HI
In the Disk Utility app, in the menu bar at the top of the screen, select "View", then "Show All Devices". The disk (in addition to the volumes) should appear and you should be able to erase/format in Mac OS Journaled. This is Apple's attempt to try to simplify the layout but in the process causes confusion and anguish for more than a few users.
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