Raspberry stuff
Shrink Raspberry micro sd card image to minimum possible.
Copy or download shrink_sd.sh script to you home folder.
run the command sh shrink_sd.sh yourImageFile.img
sudo dd bs=4M if=/dev/sda of=yourImageFile.img
Copy or download shrink_sd.sh script to you home folder.
run the command sh shrink_sd.sh yourImageFile.img