Hello all,
I have a Dell XPS 15z:

2nd generation Intel® Core™ i7-2640M processor 2.80 GHz
Windows 7 Ultimate x64bit
NVIDIA® GeForce® GT 525M 2GB graphics with Optimus
8GB Shared Dual Channel DDR3 1333MHz Memory
Intel© Centrino© Advanced-N 6230 & Bluetooth 3.0

Recently, I installed Backtrack 5 R1 by using Virtualbox. When I try to type airmon-ng but it doesn't show any interfaces, chipsest and drivers.

Details:
Here is the output of some basic commands:

iwconfig

Code:
root@bt:~# iwconfig
eth0 no wireless extensions.
lo no wireless extensions.

ifconfig

Code:
root@bt:~# ifconfig wlan0 up
wlan0: ERROR while getting interface flags: No such device

airmon-ng

Code:
Found 1 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
1220 dhclient3

Interface Chipset Driver


dmesg | tail

Code:
[ 7.336113] Intel ICH 0000:00:05.0: PCI INT A -> GSI 21 (level, low) -> IRQ 21
[ 7.336143] Intel ICH 0000:00:05.0: setting latency timer to 64
[ 7.750091] intel8x0_measure_ac97_clock: measured 53789 usecs (9432 samples)
[ 7.750094] intel8x0: measured clock 175351 rejected
[ 8.120224] intel8x0_measure_ac97_clock: measured 59983 usecs (7680 samples)
[ 8.120231] intel8x0: measured clock 128036 rejected
[ 8.490183] intel8x0_measure_ac97_clock: measured 59867 usecs (7680 samples)
[ 8.490183] intel8x0: measured clock 128284 rejected
[ 8.490185] intel8x0: clocking to 48000
[ 18.001271] eth0: no IPv6 routers present