Context here: WMF is engaged with an external party which has indicated only exfat will work for them for data transfer of a physical volume. Let's figure out if that's really ok.
17:01 <chasemp> stat1004:~# aptitude install exfat-fuse exfat-utils (elukey fyi)
exfat is patent encumbered, non-free software. From https://en.wikipedia.org/wiki/ExFAT:
exFAT is proprietary, and Microsoft owns patents on several elements of its design.
Fedora has the same stance, from https://fedoraproject.org/wiki/Forbidden_items#exfat:
Implementations of exfat are currently patent-encumbered, thus not permitted in Fedora.
In addition, this was installed outside of puppet, in violation of the Wikimedia Server Access Responsibilities document (L3).