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Thread: Broadcom BCM4312

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  1. #1
    Join Date
    Mar 2014

    Question Broadcom BCM4312

    As my first question, and as a totally new user of Lubuntu, I really need to know how to install the wifi driver on my emachines em250 netbook. I installed Lubuntu on it, and everything works fine except the wifi which doesn't seem to exist.

    • After running some commands, I got this info about my system:

      01:00.0 Network controller [0280]: Broadcom Corporation BCM4312 802.11b/g LP-PHY

      [14e4:4315] (rev 01)


    • Lo no wireless extensions.
      eth0 no wireless extensions.

    So after many, many hours of searching and reading, I came upon these instructions at this link:-------------------------------------------------------
    1. Download Broadcom 802.11 Linux STA driver from the following web page:

    2. Extract and build the driver. Below is a description of this step from README.txt:

    Originally Posted by README.txt

    1. Setup the directory by untarring the proper tarball:

    For 32 bit: hybrid-portsrc.tar.gz
    For 64 bit: hybrid-portsrc-x86_64.tar.gz

    # mkdir hybrid_wl
    # cd hybrid_wl
    # tar xzf <path>/hybrid-portsrc.tar or <path>/hybrid-portsrc-x86_64.tar.gz

    2. Build the driver as a Linux loadable kernel module (LKM):

    # make clean (optional)
    # make

    When the build completes, it will produce a wl.ko file in the top level

    If your driver does not build, check to make sure you have installed the
    kernel package described in the requirements above.

    Got from here:

    3. Now you need to run 'sudo make install' from the same floder where you ran 'make'.
    The driver wl.ko will be installed into the following folder:

    4. Now you need to load this driver into the system.
    You can do this by performing the following commands:
    # cd /lib/modules/<kernel-version>/kernel/net/wireless
    # sudo depmod
    # sudo modprobe wl
    Please note that <kernel-version> is a string with YOUR linux kernel version,
    so you need to adjust the first command.

    Now the thing is, almost all of that description is greek to me. It assumes that you know a bunch of stuff about Lubuntu already. Is there anyone out there kind enough to interpret these descriptions for me, step by step, so that I can try to install the driver. After all, what is a netbook without wifi.
    Last edited by henrik4; March 17th, 2014 at 12:29 AM.

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