Ubuntu Linux RTL8821CU Driver Installation: Detailed Instructions


Learn how to install the RTL8821CU driver on Ubuntu Linux with this step-by-step guide. Detailed instructions and commands are provided to make the process simple and straightforward.

Here is a step-by-step guide with detailed commands to install the RTL8821CU driver on Ubuntu Linux:

  1. Download the driver archive:
wget https://github.com/zebulon2/rtl8821cu/archive/v5.6.4.2.tar.gz
  1. Extract the contents of the archive:
tar -xvzf v5.6.4.2.tar.gz
  1. Navigate to the directory where you extracted the driver files:
cd rtl8821cu-5.6.4.2/
  1. Make the installation script executable:
sudo chmod +x install.sh
  1. Install the driver:
sudo ./install.sh
  1. Restart your system to apply the changes:
sudo reboot
  1. Check if the installation was successful by running the following command:
lsusb | grep RTL8821CU

This should return output similar to the following if the driver is installed and the device is detected:

Bus 001 Device 005: ID 0bda:b812 Realtek Semiconductor Corp. RTL8821CU 802.11ac PCIe Wireless Network Adapter

Note: The exact steps may vary depending on the version of the driver and the Ubuntu version you are using. Before proceeding with the installation, it is recommended to read the installation instructions that come with the driver and to make sure that you have all the necessary dependencies installed on your system.

FAQ

What is the RTL8821CU driver?

The RTL8821CU driver is a piece of software that enables the RTL8821CU wireless adapter to work on a computer running Ubuntu Linux. It is required for the adapter to be recognized by the system and to provide internet connectivity.

Why do I need to install the RTL8821CU driver on Ubuntu Linux?

You need to install the RTL8821CU driver on Ubuntu Linux to ensure that your wireless adapter is recognized by the system and to establish a connection to a wireless network. Without the driver, the adapter will not work on Ubuntu Linux.

Can I install the RTL8821CU driver on other Linux distributions besides Ubuntu?

The process of installing the RTL8821CU driver may be different for different Linux distributions. The instructions provided in this guide are specific to Ubuntu Linux. If you are using a different Linux distribution, you may need to follow different steps to install the driver.

Is it safe to install the RTL8821CU driver on Ubuntu Linux?

It is generally safe to install the RTL8821CU driver on Ubuntu Linux, as long as you download it from a reputable source, such as the manufacturer’s website or a trusted repository. Before installing the driver, it is recommended to read the installation instructions and to make sure that you have all the necessary dependencies installed on your system.

What should I do if the installation of the RTL8821CU driver fails on Ubuntu Linux?

If the installation of the RTL8821CU driver fails on Ubuntu Linux, you may need to troubleshoot the issue by checking the installation logs, verifying that you have all the necessary dependencies installed, or seeking help from the support community. It is important to make sure that the driver is compatible with the version of Ubuntu Linux that you are using.