Ubuntu is a beautiful operating system and is even more beautiful running on a MacBook. If you are installing an Ubuntu 18.04 derivative operating system, like KDEneon, on a MacBook or MacBook Pro, you may notice that the WiFi does not work. Usually this is because there was no Internet access during the installation.
If you’ve installed KDEneon or Ubuntu with no Internet and now need WiFi access you will need to do some additional configuration. Unfortunately this has to be done from the command line but don’t fret, the command is FUN!
1. First, get Internet Access!
Using the Ethernet port on your MacBook you will need to connect directly to your home router. Once on the Internet you should run a system update using the Discover software manager in KDEneon or using the Software Updater in Ubuntu.
2. Reinstall the Broadcom Wireless Drivers
After you have confirmed you have Internet and have updated your operating system you can reinstall the Broadcom Wireless Drivers with the following commands.
$ sudo apt update $ sudo apt upgrade $ sudo apt-get --reinstall install bcmwl-kernel-source
Reboot and you are ready to connect to WiFi networks with your MacBook!