I tried :
sudo apt-get update && apt-cache search b43
sudo apt-get install firmware-b43-installer
After that i get this error :
Can't update, Some index files failed to download
I tried
cd /var/lib/apt/lists/partial
sudo rm gb.archive.ubuntu.com_ubuntu_dists_natty_multivers e_source_Sources
OR
sudo rm /var/lib/apt/lists/partial/gb.archive.ubuntu.com_ubuntu_dists_natty_multivers e_source_Sources
another error
cannot remove e_source_Sources
