Microsoft's exFAT Is Still Crap On Linux
Written by Michael Larabel in Linux Kernel on 8 January 2012 at 11:01 AM EST. 28 Comments
If you were hoping to see support for Microsoft's exFAT file-system land in the Linux 3.3 kernel, guess again.

The Extended File Allocation Table (exFAT), the file-system designed by Microsoft for flash-drives where FAT32 or NTFS isn't ideal, still doesn't have proper Linux support. The last time I talked about Linux support for exFAT was back in 2009 and since then not much has changed.

There was work on a kernel module to provide read-only kernel-level exFAT file-system support natively under Linux, but that's not actively worked on. More pressing though, at this point it doesn't stand chances on being merged into the mainline Linux kernel due to licensing concerns with exFAT being a proprietary Microsoft file-system.

The more appropriate solution for those really after Microsoft exFAT support under Linux is by using an exFAT implementation in user-space with FUSE. Like the ZFS and NTFS support, there's a FUSE module for exFAT.

Hosted on Google Code is a full-featured exFAT file-system implementation built on FUSE, with the same advantages and disadvantages of other FUSE file-systems.

For those very serious about exFAT on Linux, Tuxera -- the same company that claims NTFS is the fastest Linux file-system -- does have exFAT Embedded (product page). This is a legal implementation of exFAT on Linux with Tuxera having gone through the proper licensing channels to receive the file-system documentation and construct this Linux kernel module. Tuxera also offers exFAT for Android devices.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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