how to install Linux on Raspberry Pi
From Petr Sladek
This tutorial will show you how to install the ultimate Linux distribution called Raspbian that is optimized for your Raspberry Pi.
You need to own a Raspberry Pi unit and an SD card. The faster and the bigger is the memory card the better.
For example, if you have 4GB class 4 SD memory carde, it will work, but you will not have very much useful free space and the access time for read and writes will be rather slow. If you have 16GB class 10, the memory capacity is higher and the read/write times are even better.
You might also consult the the list of supported SD before your purchase.
In this tutorial we will use another computer running Linux to burn the Raspbian image to the SD card.
First take out the memory card from your Raspberry Pi and plug it in to your notebook.
Type in command line;
email@example.com ~ $ sudo dd bs=4M if=2014-06-20-wheezy-raspbian.img of=/dev/sdd
Considering that /dev/sdd the device of your memory card reader.
Another, an easier way of doing it, is the NOOBS package, that can be downloaded from: https://www.raspberrypi.org/downloads/
You can copy the contents to your memory card under any operating system you have.
No matter which of the two methods you used to copy, take the memory card out of your notebook, put it to your RasPi and we are done! :-)
Check out other Raspberry Pi tutorials! ;-)