Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

The wireless card as identified by lspci:

Network controller [0280]: Broadcom Corporation BCM4318 [AirForce One 54g] 802.11g Wireless LAN Controller [14e4:4318] (rev 02)

I'm new to Ubuntu and I've found this guide which addresses my issue exactly. I've got internet connectivity and I just want to enable the wireless card on this old Dell laptop. However, I'm running Ubuntu Server 10.10 and I would rather not install a Desktop. Thus, I'm stuck at the following step:

Step 2.

Under the desktop menu System > Administration > Hardware/Additional Drivers, the b43 drivers can be activated for use.

Is it possible to accomplish this in the CLI?

share|improve this question
up vote 1 down vote accepted

Got it to work with some help from a user in #ubuntu. Apparently there's a bug in the b43-fwcutter package that prevents the drivers from actually being loaded. Following these instructions worked for me.

share|improve this answer

As long as you have a clue about package's name you can use apt-cache to search among packages.So search for b43:

sudo apt-cache search b43

Output is:

b43-fwcutter - Utility for extracting Broadcom 43xx firmware

For me on ubuntu 10.04.So I can install it with apt-get:

sudo apt-get install b43-fwcutter

Hope it works.

share|improve this answer
I've done this - first step in the guide I posted above but I'm getting this with iwlist scan: wlan0 Failed to read scan data : Network is down. lsmod also seems to come up clean: I should mention that the laptop has no external wifi switches - just a Fn key combo that I've toggled every time I test something. – Radu Mar 27 '11 at 19:59
Oh, Sorry for my mistake.Did you see this…? – Pedram Mar 27 '11 at 20:09
I did but I'm following the "Internet Access" portion of the guide since I've got it hooked up via ethernet. – Radu Mar 27 '11 at 20:19

If is no present, you need also wpasupplicant in order to have wpa and wpa2 support (see apt-cache show wpasupplicant) and set /etc/wpa_supplicant.conf

Can you show me lshw -C network?

If is ok:

1) sudo ifdown eth0

2) sudo ifup eth1 (or similar)

3) sudo ifconfig eth1 IP_static_your_machine netmask

4) sudo route add default gw adress_of_your_gateway_(like eth0

share|improve this answer
Something feels off here: – Radu Mar 27 '11 at 20:37
Also, here is my /etc/network/interfaces: – Radu Mar 27 '11 at 20:41
So, seems ok for me... Have you try to perform the top operation indicated? – peppe84 Mar 28 '11 at 10:06

Just download the driver from this link.

And follow the instructions here.

It works on the Ubuntu kernel version 2.6.X

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.