Eu tenho o Ubuntu 14.04 no Macbook Pro. Eu tentei executar:
sudo airmon-ng start wlan0
então o resultado foi:
Found 5 processes that could cause trouble.
If airodump-ng, aireplay-ng or airtun-ng stops working after
a short period of time, you may want to kill (some of) them!
PID Name
899 avahi-daemon
904 avahi-daemon
978 NetworkManager
1298 wpa_supplicant
4408 dhclient
Process with PID 4408 (dhclient) is running on interface wlan0
Interface Chipset Driver
wlan0 **Unknown** wl - [phy0]mon0: ERROR while getting interface flags: No such device
(monitor mode enabled on mon0)