Installing Raspberry Pi OS

What is Raspberry Pi OS ?

Raspberry Pi OS is the recommended operating system for normal use on a Raspberry Pi.

Raspberry Pi OS is a free operating system based on Debian, optimised for the Raspberry Pi hardware. Raspberry Pi OS comes with over 35,000 packages: precompiled software bundled in a nice format for easy installation on your Raspberry Pi.

Raspberry Pi OS is a community project under active development, with an emphasis on improving the stability and performance of as many Debian packages as possible.

Preliminary Note

This tutorial shows how to install Raspberry Pi OS in detail. The purpose of this guide is to provide basic installation that can be used as the basis for our Raspberry Pi tutorials here at


To install a Raspberry Pi OS you will need the following:

  1. Raspberry Pi board
  2. Power supply
  3. Micro SD card
  4. Ethernet cord


Download and launch the Raspberry Pi Imager.

Open your browser and visit:

  1. Click on the Raspberry Pi Imager link that matches your operating system.
  2. When the download is complete, run the program by clicking with your mouse.

Using the installer

  1. Select Operating System, Choose the recommended Raspberry Pi OS (32-Bit), unless you want a headless installation then choose Raspberry Pi OS Lite (32-Bit).
  2. Plug in your micro sd card, and select it.
  3. Press Write.
  1. Once you get the following message, you can eject your SD card.
  2. Plug the micro sd card in your Raspberry Pi.
  3. Connect monitor, keyboard, mouse, ethernet and then power.

You should now have a working system.


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