Implemented set_device_path function

scripts/image/base.sh

@@ -17,3 +17,15 @@ echo_partition_name(){
       echo "$1$2"
   fi
 }
+
+# Routine to echo the full sd-card-path
+set_device_path(){
+  info "Available devices:"
+  ls -lasi /dev/ | grep -E "sd|mm"
+  question "Please type in the name of the device: /dev/" && read -r device
+  device_path="/dev/$device"
+  if [ ! -b "$device_path" ]
+    then
+      error "$device_path is not valid device."
+  fi
+}