Monitor mode in ubuntu

Hi I am trying to get my aa1 wireless card into monitor mode but this is my problem It worked fine in backtrack and now that i have installed ubuntu onto my drive the same things i did in backtrack no longer work I am using sickboys kernel along with his madwifi modules. any help would be great

 

There are a couple of ways I have found to do this, with the same setup you have,

If your currently active interface is ath0 you can manually put it into monitor mode:

Code:

wlanconfig ath0 destroy
wlanconfig ath0 create wlandev wifi0 wlanmode monitor

Or I have found it works the normal way if you add a new interface before destroying the old one (this also allows you to choose a channel)

Code:

airmon-ng start wifi 1
airmon-ng stop ath0

This gives me a new interface ath1 in monitor mode for channel 1.

Hope this helps, YMMV, I'm a bit of a noob when it comes to this stuff (only started fiddling 4 or 5 days ago).

Hopefully someone can clarify the situation a bit better.

 

Assuming your using ath5k instead of madwifi

sudo airmon-ng start wlan0 1

will put it in monitor mode, on mon0

so you could run airodump like this

sudo airodump-ng mon0