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  1. #1
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    Default Backtrack 5 Wifi not working

    I am relatively new to Linux and have been trying to use Backtrack 5 but it doesnt detect my wireless card so I cant connect to any wireless networks, I am using a Realtek RTL8191SE Wireless LAN 802.11n PCI-E NIC wireless card. I was wondering is there anything I can do like download drivers/patches etc. to make my internal wireless card work, or will I have to buy an external USB wifi adapter. Also I am booting via USB.

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    Very good friend of the forum maverik35's Avatar
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    Default Re: Backtrack 5 Wifi not working

    Please, you need to know the type of driver used or loaded by the kernel, please open up a terminal, and type accordingly:
    If interface miniPCI
    lspci | grep -i network and see if card has been detected as such.
    If interface is USB
    lsusb | grep -i network

    Once you know the kernel is detecting your wifi card, then you need to see if driver loaded by kernel is the one that works, then you need to know the driver loaded:
    1. type lsmod and look for any rtl or realtek driver, you can filter it by typing: lsmod | grep -i rt* or lsmod | grep -i rtl* or lsmod | grep -i r*
    2. Use the ethtool, need to install it (aptitude install ethtool). Then type: ethtool -i "your interface (ex: eth0, eth1, wlan0, wlan1, etc)".
    3. type lspci -v, look for the wifi card and at the end, it says: " kernel driver in use: xxxx"...
    Now once you know the driver, see for any errors by the kernel:
    type: dmesg | grep -i "driver in use by kernel"

    Hope it helps...Remember, not all devices will work "out of the box"...and even if so, might not work for wep cracking, might need to "patch it" for the aircrack-ng if there is a patch available for your wifi card model.
    If natively supported by BT5, it will work for both.


    best of luck.

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    Default Re: Backtrack 5 Wifi not working

    I have solved the problem and am now connecting to wireless networks fine using my internal wireless card. After reading other threads on this forum on the subject, someone linked me to a page where you can download realtek drivers for linux, after i installed them and rebooted (using persistent USB) it is now working.
    .
    Thanks to everyone on the forums, very helpful

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    Default Re: Backtrack 5 Wifi not working

    Could you elaborate more on how you got this resolved? I am having identical problems and I have identical wireless card. Thanks!

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    Default Re: Backtrack 5 Wifi not working

    Quote Originally Posted by Harry12345 View Post
    I am relatively new to Linux and have been trying to use Backtrack 5 but it doesnt detect my wireless card so I cant connect to any wireless networks, I am using a Realtek RTL8191SE Wireless LAN 802.11n PCI-E NIC wireless card. I was wondering is there anything I can do like download drivers/patches etc. to make my internal wireless card work, or will I have to buy an external USB wifi adapter. Also I am booting via USB.
    connect to wireless network

    $ apt-get update

    then

    $ apt-get install reaver

    then

    $ sudo apt-get install linux-headers

    then

    $ prepare-kernel-sources
    $ cd /usr/src/linux
    $ cp -rf include/generated/* include/linux/


    then copy file to root directory

    then

    $ tar zxf rtl8192se_linux_2.6.0015.0127.2010.tar.gz
    $ cd rtl8192se_linux_2.6.0015.0127.2010
    $ make
    $ sudo make install
    $ reboot


    this method will not work if you are usind the live DVD because the reboot is required

    to get the drivers working!!!

    List of URL's that have helped me

    http://www.techonia.com/install-wifi...tl8191se-linux

    http://www.backtrack-linux.org/forum...ad.php?t=44286

    http://ubuntuforums.org/showthread.php?t=1896909

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