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Step-by-step – Realtek Rtl8821AU Driver Installation in Ubuntu 20.04

November 7, 2020 | By the+gnu+linux+evangelist.

GNU/Linux Ubuntu 20.04 Realtek rtl8821AU Driver Setup – Step-by-step Guide

Hi! The Tutorial shows you Step-by-Step How to Install Realtek rtl8821AU WiFi Driver for Ubuntu 20.04 Focal LTS GNU/Linux.

Especially relevant: this Realtek rtl8821AU Driver Ubuntu 20.04 Setup should be working also after a Kernel Upgrade with the Dkms integration.

Finally, from the Realtek Support Driver Website comes out that it may be working for all the following Chipsets:

  • RTL8192EU
  • RTL8811AU
  • RTL8811CU
  • RTL8812AU
  • RTL8812BU
  • RTL8814AU
  • RTL8821AU
Step-by-step Realtek rtl8821AU Driver Ubuntu 20.04 Installation - Featured

  1. 1. Terminal Getting-Started Guide

    How to QuickStart with Command Line on Ubuntu GNU/Linux:

    Console Ubuntu QuickStart Guide

    First Update the Apt Repo Sources with:

    sudo apt update
    Authenticate with the User Admin Pass.
    If Got “User is Not in Sudoers file” then see: How to Enable sudo.

  2. 2. Installing Dependencies

    Then to Install Required Packages
    First, preferably Upgrade your System with: 

    sudo apt update && sudo apt upgrade
    In this case then Reboot it using: 
    sudo reboot
    Then run:

    sudo apt install build-essential linux-headers-$(uname -r) dkms unzip git
    Authenticate with the User Admin Pass.

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