On 3/20/21 4:09 PM, Forrest Aldrich wrote:
I have a really large (3+ TB) volume I am copying to a BTRFS volume (both over USB) which is painfully slow.  In fact, it will probably take days to complete.   My goal is to use BTRFS on that larger USB volume (it's an 18TB drive)....

I don't suppose there is a way to convert APFS to BTRFS :)   I know, but I thought I would ask as it seems like others may have a similar query.


Hi Forrest,

No, there is no other option than copying the data. Converting partitions automatically with btrfs-convert is supported only for ext2/3/4 and reiserfs, though it's still not recommended without backups and might fail.



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