Can't get wireless to work with kubuntu 9.04

[David McGlone]

On Friday 31 July 2009 02:25:01 pm Bruce Bales wrote:
> On Friday 31 July 2009 06:49:09 David McGlone wrote:
> > On Friday 31 July 2009 12:44:08 am Nils Kassube wrote:
> > > Bruce Bales wrote:
> > > > Wireless on my laptop with kubuntu 8.04 was not easy.  I had to
> > > > sudo iwconfig ath0 essid bbs key (the wep code)  and then
> > > > sudo dhclient each time I booted up.
> > > >
> > > > Then I upgraded to kubuntu 9.04 and the iwconfig line no longer
> > > > works.  The iwconfig line gives me "ath0 no such device."
> > > > I tried wlan0, wlan, eth0, ath1 and wlan1 -- same result.
> > >
> > > What wireless device do you have? I think "ath0" would be some Atheros
> > > chipset but which one? 8.04 had the madwifi driver but now the driver
> > > is in the kernel, maybe your chipset is not yet supported correctly? To
> > > find out what chipset you have, use the commands
> > >
> > > lspci
> > > sudo lshw -C network
> > >
> > > in a terminal and post the relevant part of the output. And if you want
> > > to find out the wireless interface name you can try the command
> > >
> > > ifconfig -a
> > >
> > > in a terminal. It will show you the configuration of all interfaces
> > > known to your system.
> > >
> > > > The main page has an icon which says "network management"  Clicking
> > > > on that then  "network connection" then "enable wireless"  then
> > > > "manage connection" gets me nowhere.
> > >
> > > If you have problems getting the network manager working it may be
> > > useful to replace it with wicd. You can install the wicd package from
> > > the 9.04 repository.
> >
> > Another suggestion, check your /etc/network/interfaces. I can almost
> > guarantee it's empty.
> >
> > --
> > Blessings,
> > David M.
> > http://www.dmcentral.net
>
> Thanks, David
> /etc/network/interfaces contains
>
> auto lo
> iface lo inet loopback
>
> bruce
Bruce, here's some of info that might also help.
This is what my interfaces file looks like on my laptop:

auto lo
iface lo inet loopback

#auto eth0
#iface eth0 inet static
#address 192.168.2.2
#netmask 255.255.255.0
#network 192.168.2.0
#broadcast 192.168.2.255
#gateway 192.168.2.1
#dns-nameserver 192.168.2.1
#dns-search dmcghome

iface wlan0 inet static
address 192.168.2.3
netmask 255.255.255.0
gateway 192.168.2.1
dns-nameserver 192.168.2.1
dns-search dmcghome
wireless-essid dmcghome

auto wlan0


I had to comment out eth0 because for some odd reason, I couldn't connect to 
wlan0 with the eth0 info in the file

I completely forgot mention that I had to manually edit my /etc/resolv.conf 
file which was also empty. I had to add the following lines:

search dmcghome
nameserver 192.168.2.1

Without this info in the file, Internet wouldn't work for me. 

I doubt this will help, but I hope it does.

-- 
Blessings
David M.