Thanks for the hint, i missed that!

I added the unmounting and also liked the idea of the hidden folder, because otherwise my gallery was full of map tiles

so i moved all android stuff to /mnt/sdcard2/.android and adapted the script.

also, i want my pictures and videos to be stored on the real sdcard, so i creadet the needed folder and added the mount (and unmounts).

i will update the first post.