How to burn raspberry pi image to SD card on ubuntu
In the raspberry pi mannual, it introduces how to burn image on windows. Search from google, there is a topic about this.
http://askubuntu.com/questions/179437/how-can-i-burn-a-raspberry-pi-image-to-sd-card-from-ubuntu
Bash:
sudo apt-get install usb-imagewriter gparted
sudo imagewriter