Any Raspberry Pi
1 * Personal Computer
1 * Micro SD card
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 retropie 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.
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.
Insert your SD card into the computer or laptop SD card slot.
In the Raspberry Pi Imager, select the Emulation and game OS.
Choose the corresponding version according to your Raspberry Pi model.
Select the SD card you are using.
Press Ctrl+Shift+X to open the Advanced options page to enable SSH and configure wifi, these 2 items must be set, the others depend on your choice . You can choose to always use this image customization options.
Then scroll down to complete the wifi configuration and click SAVE.
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
Click the WRITE button.
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.
After waiting for a period of time, the following window will appear to represent the completion of writing.
After the image is burned, open the config.text file of the SD card to configure the screen resolution.
Add the following at the end of the file.
hdmi_cvt=800 480 60 6 hdmi_group=2 hdmi_mode=87 hdmi_drive=2
After adding, save the file and you will be able to eject the card reader.