4.5.3 Function of Utility

4.5.3.1 Starting Utility

When everything is ready to use the utility, connect the power cable to the Raspberry Pi and turn on the power, then the utility program starts automatically.

4.5.2 Downloading and Preparing Utility Program

4.5.2.1 Downloading Utility Program

The Raspberry Pi homepage provides the official utility program. Zip or Torrent type of files can be downloaded. Depending on the situation of the user, you download the appropriate format file, and extract the compressed file according to each compression format and prepare it as a normal file. The following shows the contents of the file included in the utility program that has been decompressed.

4.5 Installation Using Utility

4.5.1 Overview of Utility

The utility is a simple and easy utility program that installs the operating system on the Raspberry Pi system. Even beginners can easily install Raspbian and other operating systems on the Raspberry Pi system using the utility. With this tool, you can install Raspbian, the official operating system provided by Raspberry Pi foundation, and you can also use a way to install other operating systems if necessary.

4.4.2 Downloading from Other Soruces

Various external sites provide image data of the operating system that can be used in Raspberry Pi.

At the following URL, you can download not only the image for the Raspbian operating system but also various related materials:

■ https://www.raspbian.org/

4.4 Downloading and Preparing the Installation File

4.4.1 Downloading from Raspberry Pi Homepage

Raspberry Pi homepage provides download for most operating systems available in Raspberry Pi. Use the URL below to download the necessary material:

■ https://www.raspberrypi.org/downloads/

4.3.2 Utility and Formatting SD Card

When installing the operating system on the SD card, installing the operation system by image copying is possible regardless the format of the SD card is the FAT or exFAT format. However, to install the operating system using the utility on the SD card, since the utility bootloader requires the FAT format, the SD card must be formatted as FAT, and the exFAT format is not supported by the utility.

4.3 Preparing an SD Card

4.3.1 Formatting the SD Card

It is recommended to format the SD card for operating system installation in advance. If there is any unnecessay files on it, you should erase all the contents and adjust the SD card format to fit operating system installation.

4.2.2 About Installing Multiple Operating Systems

In the Raspberry Pi, the operating system is installed on the SD card, which allows multiple operating systems to be installed simultaneously on one SD card. The user has the advantage of selecting and working the required operating system from among the installed operating systems on the computer.

If you have multiple operating systems installed, you will be presented with a screen to select the operating system you want to use when booting your system. At this time, you will select a specific operating system and boot the selected operating system. If you do not select a particular operating system, the operating system that was selected immediately before this booting is designated as the default, and the booting operation is performed.

4.2 Overview of Installing Operating System

4.2.1 Installation Method of Operating System

You can use the following methods to install the operating system on Raspberry Pi:

● How to buy an SD card with an operating system installed in advance

You can purchase an SD card that already has an operating system already installed on the market. This method can be used for novice users or user to want a simple installation and it is advantageous to use the Raspberry Pi system immediately upon purchase.