Wireless Setup - Start Here

12-30-2008

#1 (permalink)

waterhead

Trusted Penguin

Join Date: Jul 2004

Location: Franklin, Wisconsin

Posts: 4,212

Wireless Setup - Start Here

Setting Up A Wireless Card in Linux

Although it may at first seem like a daunting task, setting up a wireless device can sometimes be fairly easy. But first, there is some information that is needed. If you are a Windows user, and new to Linux, don't worry. Windows doesn't automatically support all wireless cards, so don't expect Linux to do it. It may take a little work to get it working.

You may have read other How-To's that tell you to install NDISwrapper. For now, don't worry about trying to install NDISwrapper. You first need to identify the chipset that your wireless has, plus some other information. When you have all of the info, post it in a new thread.

Now, there actually are some cards that almost work without any configuration, but most require some configuring.

Now you will need to collect the information to diagnose how to make your wireless work. First what type is it? USB or PCI card or built-in? The brand-name of the wireless is less important, but give us that too.

Enter these commands in a terminal and post the output in your thread. If you need to use Windows to connect to the internet, then save the output in a text editor application. Common Linux text editors are Gedit and Kwrite. When you save the file, add a .txt extension to the name, so that Windows will recognize it as a text file and open it. This can be done within the same command, here's an example:

Code:

lspci -knn > lspci.txt

The lspci.txt file can then be found in your home folder. You can do this for all of the commands that I list below.

EDIT: I have now made a script that will automatically run these commands, and put the output into a text file. You can skip to the next post for more information on this.

Remember that Ubuntu requires the "sudo" command to precede some commands. Distro's like Fedora need the path included with the command.

If it is a built-in or PCI wireless, use this command to determine the card info:

Code:

lspci -knn

For Fedora:

Code:

/sbin/lspci -knn

If it is a USB wireless, use this command. It will not give as much info as for a PCI card, but it is useful anyway:

Code:

lsusb

For Fedora:

Code:

/sbin/lsusb

To see a list of all driver modules that your system is loading, use this command. I usually can spot a wireless driver in the list:

Code:

lsmod

To see any error codes that your system may have generated concerning the wireless, enter this command.

Code:

dmesg

Post any relevant wireless messages or wlan errors in your thread. Many cards require firmware to be loaded before they will work, so look for firmware errors in the dmesg output. A command that will only give firmware messages can be used:

Code:

dmesg | grep firmware

The Linux distribution and version can be useful, as well as the kernel version. To obtain the kernel version, use this command.

Code:

uname -r

When posting the information that you have found, it is best to use something called BB Code. It consists of surounding the text with "tags". Here is an example:

[code]This is a "code" tag[/code]

Which will appear in the post like this:

Code:

This is a "code" tag

This can also be accomplished by highlighting the text, and clicking on the # icon at the top of the input box.

The same can be applied to the "quote" tag:

[quote]This is a "quote" tag[/quote]

Which will appear like this:

Quote:

This is a "quote" tag

The differences in those two are with the formatting. There are many other tags that can be used, see this page for more info:

Linux Forums - BB Code List

Please start a new thread to post the output of the above commands. Do not use an existing thread, unless you have already started a thread for this problem.

By providing the needed information up front, it can make this process much easier and quicker.

And finally, if you do get your wireless to work, please post about it in your thread. What it finally took to get it working could be beneficial to others using the same wireless chip. Just posting "I got it to work, thanks" tells us very little. Please help to give a little back to the Linux community that helped you.

__________________
Paul

Please do not PM me with requests for help. I will not reply.

Last edited by waterhead; 07-02-2009 at 12:19 AM.. Reason: Added Edit For Script.

06-02-2009

#2 (permalink)

waterhead

Trusted Penguin

Join Date: Jul 2004

Location: Franklin, Wisconsin

Posts: 4,212

I have written a little Bash script that will obtain the needed information when run. You copy the code below, and save it in a text editor as a file named WirelessSetup. Or you can download the file from here:

WirelessSetup.txt

Rename it WirelessSetup (remove the .txt extension).

Code:

#! /bin/bash
# This script will find the needed information for
# wireless troubleshooting.
# Name this file WirelessSetup

cd ~/
touch wireless_setup.txt
echo ============ lspci ============ >> ~/wireless_setup.txt
lspci -knn >> ~/wireless_setup.txt
echo ` ` >> ~/wireless_setup.txt
echo ============ lsusb ============ >> ~/wireless_setup.txt
lsusb >> ~/wireless_setup.txt
echo ` ` >> ~/wireless_setup.txt
echo ============ lsmod ============ >> ~/wireless_setup.txt
lsmod >> ~/wireless_setup.txt
echo ` ` >> ~/wireless_setup.txt
echo ============ dmesg-firmware ============ >> ~/wireless_setup.txt
dmesg | grep firmware >> ~/wireless_setup.txt
echo ` ` >> ~/wireless_setup.txt
echo ============ kernel version ============ >> ~/wireless_setup.txt
uname -r >> ~/wireless_setup.txt
echo ` ` >> ~/wireless_setup.txt
echo ============ ifconfig ============ >> ~/wireless_setup.txt
ifconfig >> ~/wireless_setup.txt
echo ` ` >> ~/wireless_setup.txt
echo ============ iwconfig ============ >> ~/wireless_setup.txt
iwconfig >> ~/wireless_setup.txt

Then make the file executable. Assuming the file is in your home folder, enter this command.

Code:

chmod +x ~/WirelessSetup

You then can run the script with this command.

Code:

./WirelessSetup

It will create a text file in your home folder named wireless_setup.txt. This will contain the information described in the previous post. You can then open that file and copy the contents to your help thread.

Attached Files

WirelessSetup.txt (1.0 KB, 176 views)

__________________
Paul

Please do not PM me with requests for help. I will not reply.

Last edited by waterhead; 10-05-2009 at 02:59 AM.. Reason: Added ifconfig/iwconfig to script.