Installing
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3. Downloading Realtek rtl8821CU Driver
Download Realtek rtl8821CU Driver in GNU/Linux
Grab the Driver Installation Script.
Thanks to fars-robotics.net.
If you have a different GNU/Linux OS then you may see instead: Realtek Wifi Drivers Linux Setup Guides. -
4. Installing Dependencies
Now to Install Required Packages
On Raspberry Pi OS play:sudo apt-get install -y raspberrypi-kernel-headers bc build-essential dkms git
When instead on other Debian/Ubuntu based:
sudo apt-get install -y linux-headers-$(uname -r) build-essential dkms git
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5. Installing Realtek rtl8821CU Wifi Driver
Then to Install Realtek rtl8821CU Wireless Driver on Raspberry Pi
First, you need to access the Driver location on the MicroSD Card or USB Device:cd [DRIVERLOC]
To Check it’s there List the contents with:
ls . | grep tar
The grep Command refine the output List showing only the Entries matching the Keyword.
But if you are in Trouble to Find it out on Terminal then See: How to Access USB Device.
And then to set up the Installation Script run:chmod +x install-wifi
sudo mv install-wifi /usr/bin/
Now to Install Realtek Driver play:
sudo install-wifi
For Help use:
install-wifi -h
Authenticate with the User Admin Pass.
If Got “User is Not in Sudoers file” then see: How to Enable sudo.
Possibly for more detailed instructions see: fars-robotics.net.
Finally, in case of Issue you may see also: Realtek Wifi Drivers Linux Setup Guides.How to Setup Micro SD Card Guide
In the same way then you may then Copy the Downloaded Driver into it.
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