wireless lan and ethernet issues on new install

hasardeur · 2012-09-12 17:05:33

Hello.
I just finished installing Arch on an older laptop. There is something very strange going on with the network configuration. There should be wlan0 and eth0:

01:04.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
	Subsystem: Mitac Device 8048
	Flags: bus master, medium devsel, latency 128, IRQ 20
	I/O ports at c000 [size=256]
	Memory at cc001000 (32-bit, non-prefetchable) [size=256]
	Capabilities: [50] Power Management version 2
	Kernel driver in use: 8139too

01:05.0 Network controller: Intel Corporation PRO/Wireless 2200BG [Calexico2] Network Connection (rev 05)
	Subsystem: Intel Corporation Device 2701
	Flags: bus master, medium devsel, latency 128, IRQ 21
	Memory at cc000000 (32-bit, non-prefetchable) [size=4K]
	Capabilities: [dc] Power Management version 2
	Kernel driver in use: ipw2200

I use netcfg with the profiles for "ethernet-dhcp" and "wireless-wpa". To start them at boot I used "systemctl enable netcfg.service". Sometimes eth0 would not be started and I could not enable it manually. W-lan never worked. Everytime I try to enable it with "netcfg -u wireless-wpa" the error message states that wlan0 does not exist. So far for the scenario.

Just now eth0 was not started and I issued "dhcpcd -k && dhcpcd". The device eth1 recieved an IP. There were two eth devices and when I edited "wireless-wpa" to use eth0 it connected. Now my configuration looks like this:

ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 00:0e:35:c7:7c:61 brd ff:ff:ff:ff:ff:ff
    inet 192.168.11.41/24 brd 192.168.11.255 scope global eth0
    inet6 fe80::20e:35ff:fec7:7c61/64 scope link 
       valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 1000
    link/ether 00:40:d0:82:34:40 brd ff:ff:ff:ff:ff:ff
    inet 192.168.11.8/24 brd 192.168.11.255 scope global eth1
    inet6 fe80::240:d0ff:fe82:3440/64 scope link 
       valid_lft forever preferred_lft forever

The device for wlan0 never showed up before and enumeration is "wrong". My question is, how do I untangle this, so that both devices are enumerated in a predictable way, in order to be activated during boot. Why didn't the device for wlan0 show up before?

Thanks for your time.

Gusar · 2012-09-12 17:28:15

There's a package containing ipw2200 firmware, did you install that? You need to.

Also, the ipw2200 driver does not use wlanX naming, so one of the ethX devices is the wireless.

natestar13 · 2012-09-12 17:28:26

See this post

hasardeur · 2012-09-12 17:56:50

I already installed the firmware. Both links are now working. But I can't seem to figure out how to start both links at boot time. "systemctl enable netcfg@wireless-wpa.service" failes with an obscure error. How do you do it? (netcfg -u wireless-dhcp etc. works perfectly.)

Inxsible · 2012-09-12 20:10:15

shouldn't it be

# systemctl enable netcfg@<profile-name>.service

?

hasardeur · 2012-09-12 20:20:09

What do you mean? That is the command to enable a profile during boot. That fails. But using netcfg directly - when boot is complete works fine.

Arch Linux

#1 2012-09-12 17:05:33

wireless lan and ethernet issues on new install

#2 2012-09-12 17:28:15

Re: wireless lan and ethernet issues on new install

#3 2012-09-12 17:28:26

Re: wireless lan and ethernet issues on new install

#4 2012-09-12 17:56:50

Re: wireless lan and ethernet issues on new install

#5 2012-09-12 20:10:15

Re: wireless lan and ethernet issues on new install

#6 2012-09-12 20:20:09

Re: wireless lan and ethernet issues on new install

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