If you have the install media (e.g. ubuntu install cd), you can set up your wireless network.
b43 - No Internet access
If you do not have any other means of Internet access on your computer, you will have to install b43-fwcutter and patch packages from the install media. After that you will need to setup firmware manually (without the firmware automatically downloading and being set up).
b43-fwcutter is located on the Ubuntu install media under ../pool/main/b/b43-fwcutter/ and patch is located under ../pool/main/p/patch/ or both in the official repositories online.
Note: In some versions (10.04 and 11.04 at least) there is not a /pool/main/p/patch/ If this file is missing then you don't need it. In this case you only need to install /pool/main/b/b43-fwcutter by following the instructions below.
Double click on the package to install or in a terminal (under the desktop menu Applications > Accessories > Terminal) navigate to the folder containing the package and issue the following command:
:/b43-fwcutter/$ sudo dpkg -i b43-fwcutter*
In case you couldn't find the folder, wubi keeps it as a hidden folder so you have to mount it. Follow these steps:
~$ sudo mount -o loop /host/ubuntu/install/.fuse_hidden0000000400000001 /mnt ~$ cd /mnt/pool/main/b/b43-fwcutter/ ~$ sudo apt-get install b43-fwcutter ~$ sudo dpkg -i b43-fwcutter*
As for the patch:
~$ cd /mnt/pool/main/p/patch/ ~$ sudo apt-get install b43-fwcutter
~$ sudo umount /mnt
On a computer with Internet access, download the required firmware files from http://downloads.openwrt.org/sources/wl_apsta-188.8.131.52.o and http://mirror2.openwrt.org/sources/broadcom-wl-184.108.40.206.tar.bz2
Copy the downloaded files to your home folder and execute the following commands consecutively in a terminal to extract and install the firmware:
~$ tar xfvj broadcom-wl-220.127.116.11.tar.bz2 ~$ sudo b43-fwcutter -w /lib/firmware wl_apsta-18.104.22.168.o ~$ sudo b43-fwcutter --unsupported -w /lib/firmware broadcom-wl-22.214.171.124/driver/wl_apsta_mimo.o
Under the desktop menu System > Administration > Hardware/Additional Drivers, the b43 drivers can be activated for use.Note: A computer restart may be required before using the wifi card.