Hi guys!

After the update of Tumbleweed to GNOME 3.22, a user cannot umount a FAT32 USB
stick using files. It shows the message:

umount: /run/media/ronan.arraes/RONAN: umount failed: Operation not permitted

Hence, the only way I found to umount the device was logging as root.

I tried with an external HDD that has two partition: one FAT32 and another
EXT4. The latter can be correctly umount by a user using Files, whereas the
former cannot. This problem was not happening with GNOME 3.20.

I could reproduce this behavior in two different Tumbleweed machines. Hence, it
should not be a configuration problem.

More information about my system:

cat /etc/os-release                                               22:14:32 
NAME="openSUSE Tumbleweed"
# VERSION="20160924"
ID=opensuse
ID_LIKE="suse"
VERSION_ID="20160924"
PRETTY_NAME="openSUSE Tumbleweed"
ANSI_COLOR="0;32"
CPE_NAME="cpe:/o:opensuse:tumbleweed:20160924"
BUG_REPORT_URL="https://bugs.opensuse.org"
HOME_URL="https://www.opensuse.org/"