Arch Linux

oceanliu

Member

Registered: 2011-06-27

Posts: 31

Problem with my wireless network setup

I just install archlinux and now trying to figure out how to setup my wireless network
I tried to follow the wiki, and seems to have problem now.
when i enter the command iwconfig
it only show lo and eth0, both with 'no wireless extensions'.
i think there should be wlan0, but it's not
then i try to install ndiswrapper to get wlan0, but pacman told me 'target not found',(i use the ftp://archlinux.org/ as pacman mirror)
also i cannot install madwifi for the same reason (although i don't know what is the use of that...)
when i enter lspci | grep -i net
i get my ethernet controller : Intel 82577LM Gigabit Network Connection
and network controller: Realtek RTL8191SEvB Wireless LAN Controller,
and my computer works fine with wire network right now.
(some additional information: before i install Arch, i used ubuntu for a while, and the wireless worked just fine, i don't know why i am having these issues right now.)

Inxsible

Forum Fellow

From: Chicago

Registered: 2008-06-09

Posts: 9,183

Re: Problem with my wireless network setup

i don't know why i am having these issues right now.

You have to pay attention to what pacman says. net-tools has been deprecated. Try ip addr.

Always read the announcements :  http://www.archlinux.org/news/deprecation-of-net-tools/

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oceanliu

Member

Registered: 2011-06-27

Posts: 31

Re: Problem with my wireless network setup

i am sorry but i don't quite understand the Deprecation, how does that change my way of getting package?
and also, i did try ip addr, but still only get lo and eth0, no wlan0

tomk

Forum Fellow

From: Ireland

Registered: 2004-07-21

Posts: 9,839

Re: Problem with my wireless network setup

Inxsible - fyi the deprecation of net-tools is not relevant here, as the OP is talking about the iwconfig command from the wireless_tools package.

oceanliu - you need to identify the correct driver for the Realtek RTL8191 chipset that you're trying to use.

Inxsible

Forum Fellow

From: Chicago

Registered: 2008-06-09

Posts: 9,183

Re: Problem with my wireless network setup

You are right. Sorry.

I must have read it as ifconfig.

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oceanliu

Member

Registered: 2011-06-27

Posts: 31

Re: Problem with my wireless network setup

@ tomk :i check the Realtek website and found that the driver for my chipset is RTL8192e, which according to the wiki page, is included in the linux kernel package.
so what should i do now?

tomk

Forum Fellow

From: Ireland

Registered: 2004-07-21

Posts: 9,839

Re: Problem with my wireless network setup

Load it, with modprobe.

This driver is covered in the wiki's wireless page.

oceanliu

Member

Registered: 2011-06-27

Posts: 31

Re: Problem with my wireless network setup

Load it, with modprobe.

This driver is covered in the wiki's wireless page.

So, when i try modprobe rtl8192e,
it shows that 'FATAL, Module rtl8192e not found'
how is that happening?

tomk

Forum Fellow

From: Ireland

Registered: 2004-07-21

Posts: 9,839

Re: Problem with my wireless network setup

Because that's not the driver's name. Search the list provided by modprobe -l for the correct name.

oceanliu

Member

Registered: 2011-06-27

Posts: 31

Re: Problem with my wireless network setup

Because that's not the driver's name. Search the list provided by modprobe -l for the correct name.

Now i found the name and load it with modprobe. no respond
and when i use iwconfig to find out the interface available, i still got the same result as before:
both eth0 and lo show ' no wireless extension.'
what should i do now?

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 19,772

Re: Problem with my wireless network setup

Lets back up a step.

Please post the output of lspci -nn

Also, with the driver unloaded, go ahead a modprobe the driver, then post the output of dmesg | tail -30

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PSW

Member

From: Brighton

Registered: 2011-06-15

Posts: 32

Re: Problem with my wireless network setup

Because that's not the driver's name. Search the list provided by modprobe -l for the correct name.

Now i found the name and load it with modprobe. no respond
and when i use iwconfig to find out the interface available, i still got the same result as before:
both eth0 and lo show ' no wireless extension.'
what should i do now?

If modprobe was successful there will be no output, that is normal. If you run "modprobe -l" you will see a list of loaded modules and it will be there. Try rebooting your computer after loading the module, I have had to do that in the past with my netbook. Could you also please show the output of "ip addr"? (Or if you installed using the Core not the Net CD then "ifconfig -a" will work too.)

Like ewaller said, the output of lspci would also be useful, "dmesg" couldn't hurt either.

tomk

Forum Fellow

From: Ireland

Registered: 2004-07-21

Posts: 9,839

Re: Problem with my wireless network setup

PSW - 'modprobe -l' is a lst of all available modules, not all loaded modules. I guess you meant to say 'lsmod'?

Also, rebooting after loading the module is pointless, as he will just have to load the module again after reboot.