Step-by-step – CentOS Stream 9 Broadcom Wl Wi-fi Driver Offline Installation

Installing Driver

4. 4. Blacklisting Drivers

   Now Blacklist Conflicting Drivers
   So make or edit the File with the nano Editor:

   sudo /etc/modprobe.d/blacklist.conf

   And Paste in:

   # wireless drivers (conflict with Broadcom hybrid wireless driver 'wl')
   blacklist ssb
   blacklist bcma
   blacklist b43
   blacklist brcmsmac
   

   Ctrl+Shift+v to Paste in with nano.
   Finally, Ctrl+x to Save & Exit from nano Editor.

5. 5. Downloading Broadcom Wl Driver

   Download Broadcom Wl Driver in CentOS GNU/Linux

   Broadcom Driver Source Code for CentOS

   Downloading Broadcom B43 Driver in CentOS

   Grab the Zip Archive or Clone it with Git.

6. 6. Extracting Broadcom Wl Driver

   And to Extract Broadcom Wl Driver Zip Archive into the /tmp Folder
   Possibly Double-Click/Right-Click on Package and Open with Archive Manager:

   
   Or from Command Line:

   unzip -d /tmp/ ~/Downloads/broadcom-wl*.zip

   (But if downloaded with Firefox it may be instead into /tmp/mozilla*)
   Finally, if you are in Trouble to Find Out it on Terminal See: How to Access Downloads Folder from Browser.

7. 7. Installing Broadcom Wl Driver

   Then to Install Broadcom Wl Driver in CentOS 9
   You have 2 available Setups:

   • Manually
   • Automatically with DKMS

   Access the Target Folder:

   cd /tmp/broadcom-wl*

   To Manually Build and Install it simply run one by one:

   make

   sudo make install

   Next try to Load it:

   sudo depmod -A

   sudo modprobe wl

   Instead for the DKMS Installation that should automatically renew after a Kernel Upgrade.
   Set the needed Idintifiers with:

   DRV_NAME=broadcom-wl

   DRV_VERSION=6.30.223.271

   Move the Source to the Target:

   sudo cp -r . /usr/src/${DRV_NAME}-${DRV_VERSION}

   Last, Add, Build, and Install it:

   sudo dkms add -m ${DRV_NAME} -v ${DRV_VERSION}

   sudo dkms build -m ${DRV_NAME} -v ${DRV_VERSION}

   sudo dkms install -m ${DRV_NAME} -v ${DRV_VERSION}

   To Check the Setup:

   dkms status

   And in Output you should find:
   broadcom-wl, 6.30.223.271, 4.7.6-200.x86_64, x86_64: installed
   In case Reboot your System with:

   sudo reboot

So Now I’m truly Happy if My Guide could Help you to Install Broacom b43 Driver Offline on CentOS 9!