I've traced the problem to udev. The ID_FS_* properties are missing from the udev device. udisks2 uses the ID_FS_TYPE property to determine the filesystem type.
** Package changed: udisks2 (Ubuntu) => udev (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1416794 Title: Can't mount exFAT on Ubuntu 14.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/udev/+bug/1416794/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
