It seems it got lost here:
https://gitorious.org/community-ssu/...3125ee72f123de

My /etc/default/mount-opts:
# Options for mounting user's filesystems

home_opts="rw,noatime,errors=continue,commit=1,dat a=writeback"
fat_opts="noauto,nodev,noexec,nosuid,noatime,nodir atime,utf8,uid=29999,shortname=mixed,dmask=000,fma sk=0133,rodir"

So I am missing common_opts and the fat_opts doesn't match the vfat filesystem, possible fix:

--- mount-opts.orig 2013-08-20 22:25:37.000000000 +0200
+++ mount-opts 2015-01-03 22:18:20.000000000 +0100
@@ -2,3 +2,4 @@

home_opts="rw,noatime,errors=continue,commit=1,dat a=writeback"
fat_opts="noauto,nodev,noexec,nosuid,noatime,nodir atime,utf8,uid=29999,shortname=mixed,dmask=000,fma sk=0133,rodir"
+vfat_opts="$fat_opts"