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I am totally new to Ubuntu and Linux in general.

When I first installed Ubuntu (switching from Windows 8.1), the first problem I noticed was that my WiFi was not working. I found a solution for it. I installed drivers for my wireless LAN, and started my system in insecure mode. Later on, when I changed back to secure mode I still can't turn on my WiFi (actually there is no option for it).

I tried rfkill, but it didn't work.
Here is the output of rfkill list in insecure mode:

screenshot

When I do rfkill list in secure mode, it doesn't show 2nd and 3rd one (both Wireless LAN).

Zanna
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Rishabh Gupta
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1 Answers1

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Secure boot requires that all software and any added kernel modules, also commonly known as drivers, have a known, registered signing key in order to load. The Broadcom STA driver that your wireless devices requires doesn't yet have a signing key. You can either just disable secure boot or tell Ubuntu to disable secure boot in Ubuntu only using mokutil. Here are some details: Why do I get "Required key not available" when install 3rd party kernel modules or after a kernel upgrade?

As a 15-year user of Linux and Ubuntu, I am quite comfortable running a simple desktop machine behind a firewall-enabled router without secure boot.

Community
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chili555
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