[gentoo-user] unknown network devices

[Fernando Meira]

Hi,

I had ethernet (eth0) and wireless (wlan0) working well before I run an emerge world (which updated baselayout)
At that time I also had eth1, which I don't know why, and the normal lo.
After the emerge, my wlan0 was gone. I still have the init script (not sure if is a new one, or was overwritten), that gives the following errors:

# /etc/init.d/net.wlan0 start
SIOCSIFADDR: No such device
wlan0: unknown interface: No such device
SIOCSIFBRDADDR: No such device
wlan0: unknown interface: No such device
SIOCSIFNETMASK: No such device

The ifconfig command presents this:
# ifconfig -a
eth0      Link encap:Ethernet  HWaddr 00:00:E2:8F:5B:59
          inet addr:192.168.1.30  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::200:e2ff:fe8f:5b59/64 Scope:Link
          UP BROADCAST NOTRAILERS RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:7113 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2931 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:2435138 (2.3 Mb)  TX bytes:481373 (470.0 Kb)
          Interrupt:10 Base address:0xe800

eth1      Link encap:UNSPEC  HWaddr FF-FD-B7-A7-00-00-00-00-00-00-00-00-00-00-00-00
          BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:6 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:300 (300.0 b)  TX bytes:300 (300.0 b)

sit0      Link encap:IPv6-in-IPv4
          NOARP  MTU:1480  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

Now I have a new sit0... again, no idea why!!
So what I would need is to know how to get back wlan0 and get rid of eth1 and wlan0.

Sorry for presenting so simple problem...
thanks in advance
Fernando.