9.4 Changing Password for Default User “pi”
9.4.1 Meaning of Default User Account “pi”
Raspberry Pi has a default user accounts when the system is installed. It is the “pi” and “root” user account.
The “pi” user is a user who is basically provided to the system for system management, and is used to install and manage the system. The “pi” user has a password of “raspberry” by default and it should be changed after system installation is complete.
9.3.2 Confiuration Procedure
To configure, use the [Expand Filesystem] item in the following screen.
Figure 9‑3 Configuring file system expansion in “raspi-config” command
If you select the corresponding item and press the [Enter] button, the next screen to select the detail item will start.
9.3 Setting File System Expansion
9.3.1 Meaning
This means that when there is space in the SD card that is not used by the system yet, it converts the space into a usable space.
SD card storage is treated differently depending on how the operating system is installed. When the operating system installation image is moved to the SD card, only the space corresponding to the partition occupied by the operating system is available, and the remaining space is not used yet. In this case, if the system needs additional space, it is possible to convert unused space into usable space. When installing the system using the utility, the entire space of the SD card is already available so no special expansion work is required.
9.2.2 How to Configure Using Desktop Window
To configure the system in the Desktop window, you can use Menu à Preferences à Raspberry Pi Configuration. When you run the program, the following screen appears.
9.2 How to Configure the System
Too configure the system, there are two ways that uses the Shell command on the Terminal screen or use the Desktop window.
9.2.1 How to Configure Using “raspi-config” Command
To configure the system for booting the system, use the following command
9.10.2 Setting I2C (Inter-Integrated Circuit)
To configure I2C, use [Advanced Options]. Select the item and press the [Enter] button.
Then the next screen to select various options starts. Select the [I2C] item and press the [Enter] button.
9.10 Setting Peripherals Interface Device
This section introduces briefly the configuration of the interface device installed in the system used by Raspberry Pi to interface with external peripherals.
This section is a best expert-level topic and is not appropriate to describe here, so I will have the opportunity to elaborate on it in other books:
9.1.2 Target items for System setting
■ File system expansion
If there is space on the SD card that the system does not use yet, it will convert it into available space.
■ Change user password for default user “pi”
You can change the password for the “pi” user account, which is provided by default when the system is installed.
9.1 Overview of System configuration
9.1.1 Meaning of System Configuration
The operator can pre-determine various operating way of the system when the system first starts up, such as how it works, what appearance it display the specific item in, what features it can use among the serveral features, what tasks it starts at the startup, and more. This is called as system setting that defines various items of the system when the system first starts.
Chapter 9 Configuring Raspberry Pi System
Chapter’s Main Topics
This chapter explains, on the basis that Raspbian operating system is installed on Raspberry Pi, how administrators can configure various configuration items that determine how the system works when the system first starts up.
It includes descriptions on the following topics:
■ How to configure the system
■ File system expansion
■ Changing user password for default user “pi”
■ Setting booting startup screen
■ Setting internationalization Options
■ Setting performance item
■ Setting camera and audio device
■ Setting network related item
■ Setting peripheral interface device