Test for failure

src/freedombone-prep

     SUDO='sudo'
 fi
 $SUDO ./setup_sdcard.sh --mmc $MICROSD_DRIVE --dtb beaglebone
+if [ ! "$?" = "0" ]; then
+    echo 'System did not install to the microSD'
+    exit 4378
+fi
 
 echo ''
 echo ''