This article is regarding how to install the Edimax EW-7822ULC/EW-7822UTC/EW-7822UAD adapter in Ubuntu.  We use Ubuntu 22.04 Kernel v5.15.0-41 in this instruction.  This instruction is confirmed in Ubuntu 23.04 kernel v6.2 as well.  As of August 2nd, 2022, the official Ubuntu driver on our website can only support kernel up to v5.11.  Therefore, we need to use third party driver on GitHhub  on https://github.com/morrownr/88x2bu-20210702.    Thanks to morrownr.  


Please refer the detailed instructions on morrownr's page. 

Here is a brief installation guide for your reference.


First of all, please make sure the "Secure boot" is disabled in BIOS.   You may need to get into the BIOS settings of your computer to verify it.  If the Secure Boot is not disabled, the driver won't be installed properly.


[1.]  Make sure your system is able to access the Internet.

 

[2.]  Open a Terminal program from your Ubuntu OS.

 

[3.]  Verify the kernel version of your Ubuntu.

$ uname -r


[4.]   Make sure your system is up-to-date and reboot it after updated/upgraded, especially with a kernel update.  This step is totally optional and you don't have to do it.

$ sudo apt update

$ sudo apt upgrade

$ sudo reboot


[4.]  Install the necessary files to compile 

$ sudo apt install -y build-essential dkms git

 

[5.]  Install the kernel headers, which is needed to compile the driver.

$ sudo apt install linux-headers-$(uname -r)

 

[6.]  Download the driver

$ mkdir -p ~/src

$ cd ~/src

$ git clone https://github.com/morrownr/88x2bu-20210702.git 

$ cd ~/src/88x2bu-20210702


[7.]  Compile and install the driver.

$ sudo ./install-driver.sh


For the prompt "Do you want to edit the driver options file now? [y/N], enter n 

For the prompt "Do you want to reboot now? {recommended} [y/N] enter y 


[8.]  Your system is rebooted for the newly installed driver to take effect.

You can go to Network Manager on top right corner to select your wireless connection.

Enter your wireless security password.


[9.]  Congratulations.  The setup is completed.



Please not, if you update your Linux to a newer kernel, you will need to recompile and re-install the driver  Otherwise, the adapter is not going to work.  Before recompile/re-install the driver, please remove the old one with the following commands.


Remove driver: 

$ cd ~/src/88x2bu-20210702

$ sudo ./remove-driver.sh






Technical Support Team
Edimax USA

Santa Clara, CA


/*** EOF ***/

Created:  2022-08-16 5:51 PM

Modified: 2023-02-24 8:50 PM