Airport support in Ubuntu Dapper on a PowerBook G4
It was surprisingly easy to get the Airport card working. First download and install the firmware files in a deb package format from:
http://ubuntu.cafuego.net/dists/dapper-cafuego/bcm43xx/
It puts firmware files in /lib/firmware.
Next create a little script such as:
#!/bin/bash
interface=eth0 #interface of your wireless card
#Turning off wired network...
ifconfig eth1 down
modprobe bcm43xx
#Starting up wireless network...
ifconfig $interface up
iwconfig $interface essid MY_ESSID
iwconfig $interface mode managed
iwconfig $interface key off
dhclient $interface
You can also use the Network Settings tools to manage the wireless connection. A thread at Ubunt Forums, http://www.ubuntuforums.org/showthread.php?t=142727 was a good source of information.