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MarkC426

macrumors 68040
Original poster
May 14, 2008
3,693
2,096
UK
I have read recently about Big Sur APFS macs not being able to read Mojave APFS macs.
Is this true?

If I networked an M1 with BS to my cMP with Mojave, would the M1 be able to access Mojave volume (APFS) and also data drives (HFS+).
 

casperes1996

macrumors 604
Jan 26, 2014
7,599
5,770
Horsens, Denmark
This is not true. Big Sur can read Mojave disks. What *may* be true (I have not tested) is that Mojave can’t read Big Sur disks. Changes do happen in APFS revisions but backwards compatibility for read/write (not necessarily OS install but the installer will update APFS revision generally speaking) is maintained in the OS. Though you of course can’t necessarily have forward compatibility in an OS that didn’t know what the future would be.

Though I believe Mojave will read and write Big Sur APFS though again, I haven’t tested so I can’t guarantee anything there.

As for networking, well depending on how you do that it won’t even really need to be able to read the disk’s file format anyway. The local machine just needs to be able to do that and be able to send network packets with the data - I would imagine that should work fine
 

MarkC426

macrumors 68040
Original poster
May 14, 2008
3,693
2,096
UK
Thanks.
Looking to maybe add an M1 mini as a render machine.
Then access it through screen sharing from the cMP.
I would need to activate the relevant software remotely on the mini (rather than have to complete machines setup).

The mini would need to access HFS+ volumes on the pro for scene files, and then save the render back to the same disk.
 
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