[ubuntu-uk] Lost networking during 8.04 to 8.1 upgrade

Graham Smith myotisone at gmail.com
Wed May 20 13:36:58 BST 2009

I have posted this on the Ubuntu support forums, but to see if I speed
up getting help, I have also posted it here.  This is a Thikpad T42,
and was working fine before the upgrade and although I allowed
Synaptic to manage the upgrade, I have, since it broke, booted from an
8.1 live CD and the networking is fine with the live CD.

When rebooting the network manager icon spins for a while and then
tells me the network is disconnected and that I am now offline. I have
tried rebooting a couple of times after the upgrade but this doesn't

Same problem occurs whether I try to connect to the wireless or wired networks.

This is only an interim upgrade on my way to jaunty, but I assume I
need to get 8.1 working properly before upgrading. In any case I,
ideally need, to get my network back up and runnning to download

Below are the print outs from lshw -C network and ifconfig and
/etc/network/interfaces only has this in it:

auto lo
iface lo inet loopback

any suggestion gratefully recieved.


graham at T42-Linux:~$ lshw -c network
WARNING: you should run this program as super-user.
description: Ethernet interface
product: 82540EP Gigabit Ethernet Controller (Mobile)
vendor: Intel Corporation
physical id: 1
bus info: pci at 0000:02:01.0
logical name: eth0
version: 03
serial: 00:0d:60:fd:6b:7b
width: 32 bits
clock: 66MHz
capabilities: bus_master cap_list ethernet physical
configuration: broadcast=yes driver=e1000 driverversion=7.3.21-k3-NAPI
firmware=N/A latency=64 mingnt=255 module=e1000 multicast=yes
description: Wireless interface
product: PRO/Wireless 2200BG [Calexico2] Network Connection
vendor: Intel Corporation
physical id: 2
bus info: pci at 0000:02:02.0
logical name: eth1
version: 05
serial: 00:0e:35:58:5f:63
width: 32 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=ipw2200 driverversion=1.2.2kmprq
firmware=ABG: (Mar 22 2005) latency=64 maxlatency=24 mingnt=3
module=ipw2200 multicast=yes wireless=unassociated
*-network DISABLED
description: Ethernet interface
physical id: 1
logical name: pan0
serial: ca:28:2a:70:43:8d
capabilities: ethernet physical
configuration: broadcast=yes driver=bridge driverversion=2.3
firmware=N/A multicast=yes
graham at T42-Linux:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:0d:60:fd:6b:7b
RX packets:333 errors:0 dropped:0 overruns:0 frame:0
TX packets:2 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:24988 (24.9 KB) TX bytes:684 (684.0 B)

eth1 Link encap:Ethernet HWaddr 00:0e:35:58:5f:63
RX packets:1 errors:0 dropped:0 overruns:0 frame:0
TX packets:1 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2634 (2.6 KB) TX bytes:1680 (1.6 KB)
Interrupt:11 Base address:0x2000 Memory:c0214000-c0214fff

lo Link encap:Local Loopback
inet addr: Mask:
RX packets:38 errors:0 dropped:0 overruns:0 frame:0
TX packets:38 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:2744 (2.7 KB) TX bytes:2744 (2.7 KB)

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