I am looking to move my Mavericks (OS X 10.9) home dir to a exFAT partition. (Why is not important right now - I am just looking for technical info.) Are there known limitations to doing this? If so, what are they?
I think it would work. The Mac OS Extended FS allows the saving of some attributes, but I don't think those are required for a home directory.
Based on my research and testing, exFAT is too buggy and fragile to use to store data. I tried to copy a large number of files from an NFS+ partition to the exFAT partition, and partition corruption occurred, which was not repairable by Disk Utility. Best to stay away from this file system in OS X.
It will work, but not safely.
I have made 3 partitions on my MacBook Pro 2013, one for MacOS, one exFAT for data, and the least one for Windows 7 (NTFS). I tried to map the User directory of both operating systems to the same folder of exFAT Partition. It works, but sometimes (relative often), the MacOs make something with the *.txt, *.docx, *.pdf and maybe other files that they are corrupt at the end.
I have discovered, that is something related to so-called "resource fork" and attributes of the files in the Mac OS file system. For example, if I try to open the corrupted *.txt file with the editor, the content is some unreadable information and the text "This field left intentionally blank".
So, be aware of such experiments and always make backups of your important data!
@EamonnEd - I think that the reason for such behaviour is the mapped unix /user directory of Mac OS to the exFAT Drive and, maybe, the alternate access from both Mac OS and Windows 7.