Force unmount

src/freedombone-keydrive

 if [[ $MASTER_DRIVE == "yes" || $MASTER_DRIVE == "y" || $MASTER_DRIVE == "1" ]]; then
   if [ ! -d /home/$MY_USERNAME/.gnupg ]; then
       echo "No .gnupg directory was found for $MY_USERNAME"
-      umount $USB_MOUNT
+      umount -f $USB_MOUNT
       rm -rf $USB_MOUNT
       exit 73025
   fi
   else
       echo "Unable to copy gpg keyring to $USB_DRIVE"
   fi
-  umount $USB_MOUNT
+  umount -f $USB_MOUNT
   rm -rf $USB_MOUNT
   exit 0
 fi
 fi
 if [ ! -d $FRAGMENTS_DIR ]; then
   echo "There was a problem making the directory $FRAGMENTS_DIR"
-  umount $USB_MOUNT
+  umount -f $USB_MOUNT
   rm -rf $USB_MOUNT
   exit 6843
 fi
 fi
 if (( no_of_usb_shares > 0 )); then
   echo "A key fragment already exists on the drive for the user $MY_USERNAME"
-  umount $USB_MOUNT
+  umount -f $USB_MOUNT
   rm -rf $USB_MOUNT
   exit 58945
 fi
 
 if (( no_of_local_shares < 3 )); then
     echo "Not enough key fragments available ${no_of_local_shares}"
-    umount $USB_MOUNT
+    umount -f $USB_MOUNT
     rm -rf $USB_MOUNT
     exit 63386
 fi
 if (( no_of_usb_shares > 1 )); then
     echo "Too many key fragments exist in $FRAGMENTS_DIR"
     ls $FRAGMENTS_DIR
-    umount $USB_MOUNT
+    umount -f $USB_MOUNT
     rm -rf $USB_MOUNT
     exit 54292
 fi
 if (( no_of_usb_shares <= 0 )); then
     echo "There was a problem copying the key fragment to $USB_DRIVE"
     ls $FRAGMENTS_DIR
-    umount $USB_MOUNT
+    umount -f $USB_MOUNT
     rm -rf $USB_MOUNT
     exit 54292
 fi
-umount $USB_MOUNT
+umount -f $USB_MOUNT
 rm -rf $USB_MOUNT
 echo "Key fragment copied to $USB_DRIVE. You may now remove the drive."