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So, I was just installing the WiFi on my Quantal install and what I got is this:

Unpacking replacement bcmwl-kernel-source ...
Setting up bcmwl-kernel-source (5.100.82.112+bdcom-0ubuntu3) ...
Loading new bcmwl-5.100.82.112+bdcom DKMS files...
Building only for 3.5.0-17-generic
Building for architecture x86_64
Module build for the currently running kernel was skipped since the
kernel source for this kernel does not seem to be installed.
ERROR: Module b43 does not exist in /proc/modules
ERROR: Module b43legacy does not exist in /proc/modules
ERROR: Module ssb does not exist in /proc/modules
ERROR: Module bcm43xx does not exist in /proc/modules
ERROR: Module brcm80211 does not exist in /proc/modules
ERROR: Module brcmfmac does not exist in /proc/modules
ERROR: Module brcmsmac does not exist in /proc/modules
ERROR: Module bcma does not exist in /proc/modules
FATAL: Module wl not found.
update-initramfs: deferring update (trigger activated)
Processing triggers for initramfs-tools ...

In 11.10 and 12.04 the installation of the "bcmwl-kernel-source" worked like a charm and I had WiFI, but on 12.10 that's (sadly) not the case.

Anyone feeling like giving me a hand? :)

Needless to say I will provide any additional info if needed :)

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Can you show which packages you installed and how? I'm having the same exact problem, but when I try to do- sudo apt-get install linux-sources linux-headers-3.5.0-17-generic, I get- E: Unable to locate package linux-sources –  Ross Kinsman Oct 22 '12 at 3:29
    
This question should probably be a comment on the previous answer, however, try the following in a Terminal: –  rft183 Oct 23 '12 at 18:27
    
'sudo apt-get update' then 'sudo apt-get install linux-source linux-headers-generic'. I made a couple changes; one is that it is linux-source without the 's'. The other change (to linux-headers-generic) should make it so that if the kernel upgrades, you do not have to reinstall. Also note that you need to be connected to the internet! –  rft183 Oct 23 '12 at 18:30

1 Answer 1

up vote 2 down vote accepted

It looks like you need to install the kernel source. Look for linux-source in the software center. I normally install the headers as well. They'll be linux-headers-3.5.0-17-generic in the software center. Then try it again!

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I take it that's not good :P i.imgur.com/pNYtp.png i.imgur.com/A91K5.png –  me4oslav Oct 18 '12 at 22:20
    
I guess it only shows up in the Software Center after it's installed. Let's do it from the terminal :) –  rft183 Oct 18 '12 at 22:23
    
In terminal do: sudo apt-get install linux-sources linux-headers-3.5.0-17-generic –  rft183 Oct 18 '12 at 22:24
    
Thanks dude, that fixed it (well, I had to install download the packages from packages.ubuntu.com and then install the manually) –  me4oslav Oct 19 '12 at 6:57

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