I've installed Ubuntu 11.10 on my Macbook Pro 8,1. Everything went fine and everything installs fine except for the wireless interface.
I've installed the b43 module according to these instructions: https://help.ubuntu.com/community/MacBookPro8-1/Natty#Wireless
I've tried compiling the module,
ndiswrapper and also the last solution mentioned using this PPA:
With the three solutions, the module loads finely. It works smoothly.
lspci shows the wireless card without problem.
But there is no wireless interface.
ifconfig both show
lo as interfaces, but no
wlan0 interface is showing up.
I have no idea why, and I'm completely stuck there.