Install driver rtl8814au on ubuntu 20.04

Question

Based on this

Install driver rtl8814au on ubuntu 18.04

I installed manually (make && make install) the driver when I had the kernel

$ uname -r
5.4.0-26-generic

Now, ubuntu 20.04 wants to install the new one:

linux-image-5.4.0-29-generic

I did it before (upgrade the system then, the kernel) and the driver stopped to work, even I installed thousand times, was impossible to up the driver which logical name is "wlx50c4ddcf488e".

The installation I made:

$ sudo apt install build-essential
$ sudo apt install bc
$ sudo apt install linux-headers-`uname -r`
$ sudo apt install git

$ git clone https://github.com/aircrack-ng/rtl8812au.git

$ cd rtl8812au
$ make && sudo make install

Does anyone has idea about what can I do? Now, I cannot upgrade my system without losing the wireless connection.

Thank a lot.

Solution

I followed this at github on my Ubuntu 20.04 and it worked perfectly. https://github.com/morrownr/8814au

8814au ( 8814au.ko )
Linux Driver for USB WiFi Adapters that are based on the RTL8814AU Chipset

Installation

Need to install some packages:

sudo apt install dkms git

Now make a directory to build the driver and enter it:

mkdir src
cd src

Download the driver and then enter the 8814au directory:

git clone https://github.com/morrownr/8814au.git
cd 8814au

Run the installation script

sudo ./install-driver.sh

And reboot.

Comments

[Pilot6]

OP installed wothout using dkms.

[Boris Hamanov]

Uninstall your current manually built driver, and then see the accepted answer at askubuntu.com/questions/1185952/… which builds the same driver using dkms. First install dkms if you don't already have it installed.

[guga]

This worked on Ubuntu 21.04 - Thanks!