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I just installed Xubunu 13.04, but it didn't detect my wireless card. This is my wireless card:

Broadcom Corporation:BCM4312 802.11b/g LP-PHY: Wireless 1397 WLAN Mini-Card

I googled about it, and I found this solution :

Once you have confirmed that your WLAN device is supported, you may proceed to installing the driver by running the following command from Terminal window.

sudo apt-get install firmware-b43-installer

The problem is that I can't run this command in a terminal because I've no connection in xubntu. I'm currently posting this thread from Windows.

I downloaded the package firmware-b43-installer from debian, and when I tried to install it, it told me that I need the b43-fwcutter package so I download it, and when I tried to install it the terminal shows me that the installation needs some sources from the internet.

I don't have an Ethernet or some other internet connection source, the only way I can access to internet is from Windows.

How can I install my wireless card driver offline ?

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  • No idea .. ???? – Croviajo Jun 6 '13 at 18:07
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I have done it on Xubuntu 12.10 (Quantal Quetzal):

  1. Download firmware-b43-installer and b43-fwcutter from Ubuntu, choose the target release version (I chose Quantal) and architecture.

    • Alternatively, if you have a Live CD or installed *Ubuntu of the same release with Internet access, you can do: apt-get -d install firmware-b43-installer and then look for both packages in /var/cache/apt/archives. Do not use packages from different releases.
    • Do not download from Debian. Being a derivative does not imply that they are compatible, and does not imply that Debian's packages are suitable for Ubuntu.
  2. On the target machine, do dpkg -i b43-fwcutter* && dpkg -i firmware-b43-installer*

    • b43-fwcutter is a dependency of firmware-b43-installer, so it must be installed first.
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I believe the package you need is linux-firmware-nonfree. http://packages.ubuntu.com/raring/all/linux-firmware-nonfree/download

Please download the package, transfer it on a USB stick or similar to the desktop of the Xubuntu machine. Open a terminal Ctrl+Alt+t and do:

sudo dpkg -i Desktop/linux*.deb
sudo modprobe -r b43 && sudo modprobe b43

You should be all set.

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1:- After finish installation, Mount the installation media (dvd/usb) and open it.

2:- > pool > main > d > dkms > and drag that package "dkms_2.2.0.3-2ubuntu11.1_all.deb" on the desktop.

3:- Again open the media (dvd/usb)

4:- > pool > restricted > b > bcmwl > and drag that package "bcmwl-kernel-source_6.30.223.248+bdcom-0ubuntu8_amd64.deb" on the desktop.

5:- Close all window and open terminal.

6:- Type in terminal without quotes " cd \Desktop " and hit enter.

7:- Now type in terminal without quotes " sudo dpkg -i *.deb " and hit enter.

8:- Type your password and wait for finishing installation.

9:- Restart your machine after finish above process.

Here is below link to step by step installation driver without Internet connection for BCM43xxx family branch.

BCM43xxx WiFi Driver Installation

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  • Whilst this may theoretically answer the question, it would be preferable to include the essential parts of the answer here, and provide the link for reference. – fossfreedom Nov 16 '16 at 16:51

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