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am using a macbook air (late 2008) dual-booted mac osx and ubuntu 11.10 i cant connect to the internet as it says firmware missing i did the "dmesg | grep -i firm" command and this was the result :-

[    0.209432] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored <br>
[    2.377469] Broadcom 43xx driver loaded [ Features: PNL, Firmware-ID: FW13 ] <br>
[    2.598274] b43-phy0 ERROR: Firmware file "b43/n0initvals11.fw" not found <br> 
[    2.598278] b43-phy0 ERROR: Firmware file "b43-open/ucode11.fw" not found <br>
[    2.598282] b43-phy0 ERROR: You must go to and download the correct firmware for this driver version. Please carefully read all instructions on this website.

What to do?

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possible duplicate of Broadcom BCM4311 Wireless not working – Bruno Pereira Nov 15 '11 at 11:43

Connect to the internet with a cable, open the Additional Drivers tool from your dash, the driver for your wireless card should be there and you just need to install it.

If by some reason that driver does not work open Additional Drivers tool again, remove the driver and open the Ubuntu Software Center, look for bmc in the search box and install the package.

Don't forget to reboot just in case the new modules are not being loaded.

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