Ubuntu14.04 wireless NIC Driver Installation

After the latest Ubuntu 14.04 version is installed, the wireless network card cannot be used. After trying to install the driver, the problem is solved. First determine the wireless network card type: lspci-vnn-d14e4: for example, my network card type is. 0 Networkcontroller [0280]: broadcomconfigurationbcm4312802.11b/gLP-PHY [14e4: 4315] According to the network card type 14e4: 4

After the latest Ubuntu 14.04 version is installed, the wireless network card cannot be used. After trying to install the driver, the problem is solved.

First, determine the wireless network card type:

Lspci-vnn-d 14e4:

For example, if my network card type is

. 0 Network controller [0280]: Broadcom Corporation BCM4312 802.11b/g LP-PHY [14e4: 4315]

Find the driver to be installed according to the NIC type 14e4: 4315, and compare it with the following table. here all I need to install is the wl type

Installation steps:

1, first install b43-fwcutter tool, as follows:

Download the b43-fwcutter source code:

Http://bues.ch/b43/fwcutter/b43-fwcutter-018.tar.bz2

Decompress the package, go to the directory, and run

Make

Sudo make install

2. Install the driver

Download the driver file:

Http://www.lwfinger.com/b43-firmware/broadcom-wl-5.100.138.tar.bz2 with b43-fwcutter tool install driver sudo b43-fwcutter-w/lib/firmware broadcom-wl-5.100.138/linux/wl_apsta.o

3. Load the driver

Modprobe b43

It may take a long time to load the driver. Please wait.

For other types of wireless network cards, refer to the URL:

Http://wireless.kernel.org/en/users/Drivers/b43#devicefirmware

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