Broadcom BCM4311

[Buenadriver]

ubuntu@ubuntu:~$ cd Desktop
ubuntu@ubuntu:~/Desktop$ sudo dpkg -i linux-firmware*.deb
dpkg: error processing linux-firmware*.deb (--install):
 cannot access archive: No such file or directory
Errors were encountered while processing:
 linux-firmware*.deb
ubuntu@ubuntu:~/Desktop$

[varunendra]

ubuntu@ubuntu:~/Desktop$ sudo dpkg -i linux-firmware*.deb
dpkg: error processing linux-firmware*.deb (--install):
 cannot access archive: No such file or directory
Errors were encountered while processing:
 linux-firmware*.deb

Means the file "linux-firmware-nonfree_1.14ubuntu1_all.deb" was not present on your Desktop.

Did you download it?
Did you copy it to your Desktop before running the "sudo dpkg..." command?

The direct download link is : http://mirrors.kernel.org/ubuntu/poo...buntu1_all.deb

The downloaded file should be "linux-firmware-nonfree_1.14ubuntu1_all.deb"

[Buenadriver]

ubuntu@ubuntu:~$ cd Desktop
ubuntu@ubuntu:~/Desktop$ 
ubuntu@ubuntu:~/Desktop$ sudo dpkg -i linux-firmware*.deb
(Reading database ... 148949 files and directories currently installed.)
Preparing to replace linux-firmware-nonfree 1.14ubuntu1 (using linux-firmware-nonfree_1.14ubuntu1_all.deb) ...
Unpacking replacement linux-firmware-nonfree ...
Setting up linux-firmware-nonfree (1.14ubuntu1) ...
ubuntu@ubuntu:~/Desktop$

Now I have an OPENED linux-firmware nonfree 1.14ubuntu1_all.d... on desktop which I hope returned the info you were asking for.

[varunendra]

Yup, it seems it was installed properly this time. Now the required firmware should be ready for the driver.

Now, please either reboot, or manually reload the driver with -

sudo modprobe -rv b43
sudo modprobe -v b43

Your wireless should be working now. If not, please post back the outputs of -

dpkg | grep -e wl -e b43
dmesg | grep -e wl -e b43
rfkill list

[Buenadriver]

ubuntu@ubuntu:~$ dpkg | grep -e wl -e b43
dpkg: error: need an action option

Type dpkg --help for help about installing and deinstalling packages[*];
Use `dselect' or `aptitude' for user-friendly package management;
Type dpkg -Dhelp for a list of dpkg debug flag values;
Type dpkg --force-help for a list of forcing options;
Type dpkg-deb --help for help about manipulating *.deb files;

Options marked[*] produce a lot of output - pipe it through `less' or `more' !
ubuntu@ubuntu:~$ rfkill list
ubuntu@ubuntu:~$

[varunendra]

ubuntu@ubuntu:~$ dpkg | grep -e wl -e b43
dpkg: error: need an action option

Oops! Sorry, my mistake this time - it should have been "dmesg", not dpkg.

Have you rebooted? Is it still not working? If so, please try the corrected command -

dmesg | grep -e wl -e b43

..and post back the output.

[Buenadriver]

ubuntu@ubuntu:~$ dmesg | grep -e wl -e b43
[   68.868387] b43-phy0: Broadcom 4311 WLAN found (core revision 10)
[   68.912058] b43-phy0: Found PHY: Analog 4, Type 2 (G), Revision 8
[   70.306617] b43-phy0 ERROR: Firmware file "b43/ucode5.fw" not found
[   70.306625] b43-phy0 ERROR: Firmware file "b43-open/ucode5.fw" not found
[   70.306629] b43-phy0 ERROR: You must go to http://wireless.kernel.org/en/users/Drivers/b43#devicefirmware and download the correct firmware for this driver version. Please carefully read all instructions on this website.
[  530.688083] b43-phy0: Found PHY: Analog 4, Type 2 (G), Revision 8
[  530.762855] b43-phy0 ERROR: Firmware file "b43/ucode5.fw" not found
[  530.762869] b43-phy0 ERROR: Firmware file "b43-open/ucode5.fw" not found
[  530.762877] b43-phy0 ERROR: You must go to http://wireless.kernel.org/en/users/Drivers/b43#devicefirmware and download the correct firmware for this driver version. Please carefully read all instructions on this website.
ubuntu@ubuntu:~$

[varunendra]

Are you trying this on a Live CD/DVD/USB?

That is, Ubuntu running from a Live CD/DVD or Live USB, not the one "Installed" and running from hard disk.

If so, all the changes will be lost on reboot unless it is a Live USB with "Persistence". Hence the installed firmware will be lost too.

Please confirm and I'll let you know what can be done in that case.

[Buenadriver]

I have problems rebooting. To reboot from the hard puts up a grey screen with vertical lines and that sets there for about 15 mins. until it times out. Then I can tap the curser and it boots. But I then don't have ANY internet connection. So I put the install cd in the drive and start an install until I get to the first quit button. I click on the quit button and it boots. I understand now what you are saying about changes being lost. I don't have a usb stick yet, to work with.

[varunendra]

If you want to activate the wifi on a Live session running from the CD, you'll have to install the driver EVERY TIME you boot in that way. Then, instead of rebooting, run the two "modprobe.." commands I suggested. That will re-load the driver without rebooting. Your wifi will start working at this point, but you'll have to do it all again on next reboot.

In detail, the above process will go as follows -

1) Install the firmware : Download it from the link I gave > Copy it to the Desktop > Install it with "sudo dpkg -i linux-firmware*.deb" command as I suggested before.

2) Reload the driver : After the firmware package has been successfully installed as above, run the following commands to reload the driver without rebooting -

sudo modprobe -rv b43
sudo modprobe -v b43

If you do this on the 'Installed' system, the one that is running from hard disk, not the CD, then the above process will be required only once. The driver will work automatically since next boot.

The grey screen + vertical lines problem you mentioned sounds like a graphichs issue. But once you have gone past it, do you get a usable desktop on which you can perform the above steps? If yes, it will be only one time process. The wireless should work afterwards (since next boot).

I would be glad to help with the installed version. I have already mentioned above how you can get wireless in Live session. Let me know what you need now.