#!/bin/sh

 DEVICE="$1"

 # This script makes sure that the stick is unmounted and unused

 # Run this Script before the init process

 # make sure to have "/dev/sdb" (not "/dev/sdb1")

 #DEVICE="${DEVICE:0:8}" the bash way does not work in dash -.-

 DEVICE="$(echo "$DEVICE" | awk '{print substr($1,0,9)}')"

 # make sure the device is not mounted

 umount /var/run/usbmount/*

 sleep 1

 rmdir /var/run/usbmount/*

 umount ${DEVICE}*

 # search for already encrypted volumes

 device=$(encryptionprovider.py -g)

 if [ "$?" == "0" ]

 then

 	encryptionprovider.py -u $device

 fi