GNU/Linux CentOS 8.x/Stream-8 Realtek RTL8821cu Driver Setup Guide
Hi! The Tutorial shows you Step-by-Step How to Install Realtek RTL8821cu Wireless Driver in CentOS GNU/Linux 8.
Especially relevant: this Realtek RTL8821cu Driver CentOS 8.x/Stream-8 Setup should be working also after a Kernel Upgrade with the Dkms integration.
Please be aware of how this Driver is Not supporting all the Linux Kernels range, so in case of issue consult the available Online Documentation.
Finally, this Guide is Valid also for All the others RedHat Linux Based Distros like:
- RedHat Enterprise Linux
- Oracle Enterprise Linux
- Rocky Linux
- AlmaLinux

1. Launching Terminal
Open a Terminal Shell Emulator Window:
(Press “Enter” to Execute Commands).-
2. Installing Requirements
Then to Install Required Stuff
First, possibly Upgrade your system with:sudo dnf update && sudo dnf upgrade
In this case after reboot:sudo reboot
Then run:sudo dnf groupinstall "Development Tools"
Further you may need also the C Libraries:sudo dnf groupinstall "C Development Tools and Libraries"
How to Enable Powers Tools on CentOS 8
And again:sudo dnf install dkms kernel-headers kernel-devel elfutils-libelf-devel unzip git
Authenticate with the User Admin Pass.
If Got “User is Not in Sudoers file” then see: How to Enable sudo.
Contents
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