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Thread: Remove WLAN Driver

  1. #1
    Join Date
    Mar 2013
    Beans
    3

    Remove WLAN Driver

    Hello,

    I need to uninstall my Wireless Lan Driver for "Network controller [0280]: Broadcom Corporation BCM43224 802.11a/b/g/n [14e4:4353] (rev 01)".
    It can't be simply blacklisted, it needs to be removed in a way that I can only reinstall it with the help of another computer. (i.e. removed completely)
    I don't have any 3rd party drivers installed, it's a clean Ubuntu 12.10 installation.

    Thanks for any help!
    Last edited by nixoninajar; March 8th, 2013 at 09:39 PM.

  2. #2
    Join Date
    Aug 2005
    Location
    South Carolina, USA
    Beans
    20,058
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Remove WLAN Driver

    Is the driver not working properly? Are you certain that's the best way to fix it? Is the driver wl?
    Code:
    sudo lshw -C network
    drver=??
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  3. #3
    Join Date
    Mar 2013
    Beans
    3

    Re: Remove WLAN Driver

    Code:
    driver=brcmsmac
    One of my students writes his finals on a laptop, he is not allowed to acess the internet, thus I need to properly uninstall the driver. (The WLAN card is not easily removable.)

  4. #4
    Join Date
    Aug 2005
    Location
    South Carolina, USA
    Beans
    20,058
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Remove WLAN Driver

    Would it not do just as well to blacklist the driver? The relevant directory, /etc is only writable by administrators and modprobe is only executable by admins. I assume you gave your student his or her own user account without having access to the admin password. Removing a driver built-in to the kernel is not as simple as sudo apt-get remove driver.

    I would also find and blacklist the ethernet driver.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  5. #5
    Join Date
    Mar 2013
    Beans
    3

    Re: Remove WLAN Driver

    Why the ethernet driver? The Exam takes place in a supervised room, and there is no ethernet.

    I successfully crippled the driver by deleting some "code" file and other files in a folder in /etc/drivers/.
    I searched for "brcmsmac" and found it this way, so I'm not sure where exactly it was.
    So issue solved, thanks chili555!

  6. #6
    Join Date
    Aug 2005
    Location
    South Carolina, USA
    Beans
    20,058
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Remove WLAN Driver

    Please post back if we can help you further. Please note that bcma depends on brcmsmac and probably needs to be temporarily crippled also. bcma carries the actual device ID aliases. I'm not exactly sure what you did but be sure to test carefully.
    Last edited by chili555; March 8th, 2013 at 09:54 PM.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

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