[SOLVED] Clone SD to larger SD

[Nachteule]

The best way to do it is (as Skywatch already told):

1) mount a share to your windows box
2) run sudo xbian-config, select 6) XBian copier
3) change destination to file:/<ThePathYouMounted>/backup.img. This makes a full backup of your sd-card
4) Now you can flash your image to new sd-card with the disk imager of your choice
5) Plug this card into your Pi and boot from it. Resizing root and creating swap will be done on the first boot automatically