Cannot create files on exfat card / 10-stable

Mathias Picker Mathias.Picker at
Mon Feb 17 11:22:57 UTC 2014

Hi all,

I just got my first exfat formatted sdxc card.

If I mount it with (as root) mount.exfat /dev/da2s1 /mnt I can read the
content, create *directories*, but *not files*???

    root at marcopolo:/mnt # touch test1
    touch: test1: Invalid argument
    root at marcopolo:/mnt # mkdir test1
    root at marcopolo:/mnt # touch test1/test
    touch: test1/test: Invalid argument
    root at marcopolo:/mnt # ll -d test1
    drwxr-xr-x  1 root  wheel  131072 16 Feb 19:46 test1/
    root at marcopolo:/mnt # ll test1
    total 0

Shouldn't this work?

I rebuilt fusefs-lib and fusefs-exfat with gcc48, same result...

This is on a recent stable:
marcopolo% uname -a
FreeBSD marcopolo 10.0-STABLE FreeBSD 10.0-STABLE #14 r261827: Thu Feb
13 13:13:01 CET 2014     mathiasp at marcopolo:/usr/obj/usr/src/sys/GENERIC

The card is a Sandisk Extreme MicroSDXC 64Gb. Works fine in my phone.

Any tips, hints, experiences?

Thanks, Mathias

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