urbackup@urbackup-3:~$ ls -l /usr/bin/urbackup*
-rwxr-xr-x 1 root root 954552 déc. 8 21:02 /usr/bin/urbackup_mount_helper
-rwsr-sr-x 1 root root 958616 déc. 8 21:02 /usr/bin/urbackup_snapshot_helper
-rwxr-xr-x 1 root root 7206736 déc. 8 21:02 /usr/bin/urbackupsrv
urbackup@urbackup-3:~$
root@urbackup-3:~# chmod 6755 /usr/bin/urbackup_mount_helper
root@urbackup-3:~# su -c "urbackup_mount_helper test" urbackup
MOUNT TEST OK
root@urbackup-3:~#
Now i have the “Mount image” button appearing :
But file list is empty after click on “mount image” :