.. note:: Hello, welcome to the SunFounder Raspberry Pi & Arduino & ESP32 Enthusiasts Community on Facebook! Dive deeper into Raspberry Pi, Arduino, and ESP32 with fellow enthusiasts. **Why Join?** - **Expert Support**: Solve post-sale issues and technical challenges with help from our community and team. - **Learn & Share**: Exchange tips and tutorials to enhance your skills. - **Exclusive Previews**: Get early access to new product announcements and sneak peeks. - **Special Discounts**: Enjoy exclusive discounts on our newest products. - **Festive Promotions and Giveaways**: Take part in giveaways and holiday promotions. 👉 Ready to explore and create with us? Click [|link_sf_facebook|] and join today! Installing the OS ======================= **Required Components** ================== ====================== Any Raspberry Pi 1 \* Personal Computer 1 \* Micro SD card ================== ====================== **Step 1** Raspberry Pi have developed a graphical SD card writing tool that works on Mac OS, Ubuntu 18.04 and Windows, and is the easiest option for most users as it will download the image and install it automatically to the SD card. Visit the download page: https://www.raspberrypi.org/software/. Click on the link for the Raspberry Pi Imager that matches your operating system, when the download finishes, click it to launch the installer. .. image:: img/image11.png :align: center **Step 2** When you launch the installer, your operating system may try to block you from running it. For example, on Windows I receive the following message: If this pops up, click on **More info** and then **Run anyway**, then follow the instructions to install the Raspberry Pi Imager. .. image:: img/image12.png :align: center **Step 3** Insert your SD card into the computer or laptop SD card slot. **Step 4** .. In the Raspberry Pi Imager, select the OS that you want to install and .. the SD card you would like to install it on. .. .. image:: img/image13.png .. :align: center .. .. note::  .. 1) You will need to be connected to the internet the first time. .. 2) That OS will then be stored for future offline use(lastdownload.cache, C:/Users/yourname/AppData/Local/Raspberry Pi/Imager/cache). So the next time you open the software, it will have the display "Released: date, cached on your computer". .. Download the `raspios_armhf-2020-05-28 `_ image and select it in Raspberry Pi Imager. .. .. image:: img/otherOS.png .. :align: center .. .. warning:: .. Raspberry Pi OS has major changes after the 2021-05-28 version, which may cause some functions to be unavailable. Please do not use the latest version for now. .. warning:: Upgrading the Raspberry Pi OS to **Debian Bullseye** will cause some features to not work, so it is recommended to continue using the **Debian Buster** version. In the Raspberry Pi Imager, click **CHOOSE OS** -> **Raspberry Pi OS(other)**. .. image:: img/3d33.png :align: center Scroll down to the end of the newly opened page and you will see **Raspberry Pi OS(Legacy)** and **Raspberry Pi OS Lite(Legacy)**, these are security updates for Debian Buster, the difference between them is with or without the desktop. It is recommended to install **Raspberry Pi OS(Legacy)**, the system with the desktop. .. image:: img/3d34.png :align: center **Step 5** Select the SD card you are using. .. image:: img/image14.png :align: center **Step 6** To open the advanced options page, click the setting button (appears after selecting operating system) or press Ctrl+Shift+X. Enable ssh and set the username and name. You can choose to always use this image customization options. .. note:: When the Set hostname box is not checked, the default hostname will still be ``raspberrypi``, and we will use this hostname to access the Raspberry Pi remotely. .. image:: img/image15.png :align: center Then scroll down to complete the wifi configuration and click **SAVE**. .. note:: **wifi country** should be set the two-letter `ISO/IEC alpha2 code `_ for the country in which you are using your Raspberry Pi, please refer to the following link: https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2#Officially_assigned_code_elements .. image:: img/image16.png :align: center **Step 7** Click the **WRITE** button. .. image:: img/image17.png :align: center **Step 8** If your SD card currently has any files on it, you may wish to back up these files first to prevent you from permanently losing them. If there is no file to be backed up, click **Yes**. .. image:: img/image18.png :align: center **Step 9** After waiting for a period of time, the following window will appear to represent the completion of writing. .. image:: img/image19.png :align: center