I finally got it working thanks to the following information I found:



"Once you've installed the plugin, you need to go to the advanced properties, and set the SetMountPount variable. For Vera3, this is /dev/sda1 for the bottom USB slot, or /dev/sdb1 for the top slot. For Vera2, unfortunately, I'm not 100% sure. I've been using /dev/scsi/host0/bus0/target0/lun0/part1 on my Vera2 (top socket I think). For Vera3Lite I'm told it is /dev/sda1. If you are using a USB hub, these may change - refer to the document for a description of how to find the mount point.



Note that this should not be used with Veras USB logging enabled. If you have USB logging enabled, you should use a separate USB stick - don't be tempted to use the same drive as this can cause problems."



This is the only non automatique part!!