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2. Installing the OS

Required Components

  • A Personal Computer

  • A Micro SD card and Reader

1. Install Raspberry Pi Imager

  1. Visit the Raspberry Pi software download page at Raspberry Pi Imager. Choose the Imager version compatible with your operating system. Download and open the file to initiate installation.

  2. A security prompt may appear during installation, depending on your operating system. For example, Windows might display a warning message. In such cases, select More info and then Run anyway. Follow the on-screen guidance to complete the installation of the Raspberry Pi Imager.

  3. Launch the Raspberry Pi Imager application by clicking its icon or typing rpi-imager in your terminal.


2. Install OS to Micro SD Card

  1. Insert your SD card into your computer or laptop using a Reader.

  2. Within the Imager, click Raspberry Pi Device and select the Raspberry Pi model from the dropdown list.

  3. Select Operating System and opt for the recommended operating system version.

  4. Click Choose Storage and select the appropriate storage device for the installation.


    Ensure you select the correct storage device. To avoid confusion, disconnect any additional storage devices if multiple ones are connected.

  5. Click NEXT and then EDIT SETTINGS to tailor your OS settings.


    If you have a monitor for your Raspberry Pi, you can skip the next steps and click ‘Yes’ to begin the installation. Adjust other settings later on the monitor.

  6. Define a hostname for your Raspberry Pi.


    The hostname is your Raspberry Pi’s network identifier. You can access your Pi using <hostname>.local or <hostname>.lan.

  7. Create a Username and Password for the Raspberry Pi’s administrator account.


    Establishing a unique username and password is vital for securing your Raspberry Pi, which lacks a default password.

  8. Configure the wireless LAN by providing your network’s SSID and Password.


    Set the Wireless LAN country to the two-letter ISO/IEC alpha2 code corresponding to your location.

  9. To remotely connect to your Raspberry Pi, enable SSH in the Services tab.

    • For password authentication, use the username and password from the General tab.

    • For public-key authentication, choose “Allow public-key authentication only”. If you have an RSA key, it will be used. If not, click “Run SSH-keygen” to generate a new key pair.

  10. The Options menu lets you configure Imager’s behavior during a write, including playing sound when finished, ejecting media when finished, and enabling telemetry.

  11. When you’ve finished entering OS customisation settings, click Save to save your customisation. Then, click Yes to apply them when writing the image.

  12. If the SD card contains existing data, ensure you back it up to prevent data loss. Proceed by clicking Yes if no backup is needed.

  13. When you see the “Write Successful” popup, your image has been completely written and verified. You’re now ready to boot a Raspberry Pi from the Micro SD Card!

  14. Now you can insert the SD card set up with Raspberry Pi OS into the microSD card slot located on the underside of the Raspberry Pi.