Raspbian is official OS for Raspberry Pi.

Basically This tutorial goes with Raspbian 8 Jessie Lite.(no GUI)

Install on Linux

1. Download official image: Raspbian Jessie Lite

(Link address can be replaced if new version has released.)

$ wget http://director.downloads.raspberrypi.org/raspbian_lite/images/raspbian_lite-2016-03-18/2016-03-18-raspbian-jessie-lite.zip

If download completed, check the file

$ ls -al

It is possible that size can be different as yours and mine because my file is originally downloaded 02-09 version

2. Unzip the file

Install unzip first.

$ sudo apt install unzip -y

Then, unzip the file.

$ unzip 2016-02-26-raspbian-jessie-lite.zip

unzip done.

(I changed name of .img file for convenience.)

3. Insert your SD card to PC, check SD card device name.

$ sudo fdisk -l

# Very Important here # It will show your what is your SD card name.

For me, screenshot shows

Device Name is: /dev/mmcblk0

Partition Name is: /dev/mmcblk0p1

4. Unmount your SD card partition

$ sudo umount /dev/mmcblk0p1

5. copy image to SD card. (Using Device Name)

# Once you do dd, your SD card data will be completely removed. Please backup necessary data before launch. #

$ sudo dd bs=4M if=2016-02-26-raspbian-jessie-lite.img of=/dev/mmcblk0

This will take several minutes, and does not show progress.

If you want to know the progress, check: How to monitor dd progress/status

Once dd has done, remove SD card from your PC, put it into your Raspberry Pi, and boot up.