Realtek Rtl8723BU Driver Ubuntu 21.10 Installation – Step-by-step

Installing

2. 2. Installing Dependencies

   Then to Install Required Packages
   First, preferably Upgrade your System with:

   sudo apt update && sudo apt upgrade

   In this case then Reboot it using:

   sudo reboot

   Then run:

   sudo apt install build-essential linux-headers-$(uname -r) dkms unzip git

   Authenticate with the User Admin Pass.

3. 3. Downloading Realtek rtl8723BU Driver

   Download Realtek Driver for Ubuntu GNU/Linux

   Get Realtek rtl8723BU Driver for Ubuntu

   Realtek Driver Source Realtek for Ubuntu

   Especially relevant: this guide follow only the original Lwfinger Setup, for the others Variants see directly the Developer GitHub Page!

4. 4. Extracting Realtek rtl8723BU Driver

   And then Extract Driver Archive into /tmp
   (Skip in case of Git Checkout)
   Possibly Double-Click/Right-Click on Package and Open with Archive Manager:

   
   Or from Command Line:

   unzip -d /tmp/ ~/Downloads/*master.zip

   (But if you are in Trouble to Find the Location on Terminal then See: How to Access Downloads Folder from Browser.)

5. 5. Installing Realtek rtl8723BU Driver

   Then to Install rtl8723BU Wi-fi Driver for Ubuntu
   Access the Target folder:

   cd  /tmp/*master

   Or in case of Git Checkout:

   cd rtl8723BU

   Then source the Config File with:

   source dkms.conf

   Now make the needed Directories:

   sudo mkdir /usr/src/$PACKAGE_NAME-$PACKAGE_VERSION

   Again copy the required Code:

   sudo cp -r core hal include os_dep platform dkms.conf Makefile rtl8723b_fw.bin /usr/src/$PACKAGE_NAME-$PACKAGE_VERSION

   Add it to DKMS:

   sudo dkms add $PACKAGE_NAME/$PACKAGE_VERSION

   And finally to Install it play:

   sudo dkms autoinstall $PACKAGE_NAME/$PACKAGE_VERSION

   Last, alternatively you can also try with the usual make, sudo make install Setup.

So Now I’m truly Happy if My Guide could Help you to Install Realtek rtl8723BU Driver on Ubuntu 21.10!