Ubuntu
network-manager package

  1. Bug #279262
  2. Comment #61

Comment 61 for bug 279262

Revision history for this message
Martin G Miller (mgmiller) wrote : Re: [regression] devices/interfaces not set to "auto" in /etc/network/interfaces get blacklisted in 0.7 (intrepid) but were managed in 0.6 (hardy and before)

Since upgrading from hardy to Intrepid I have a similar issue. I had set Hardy up with static IP and on upgrade to Intrepid, I have no nm-applet I am online, but can't manage my nic. It gives me the read only message mentioned above. Oddly, the Network Configuration shows I have 2 nics, eth0 and eth1. eth0 has no mac address and eth 1 has a mac address. My system only has 1 nic and no wireless, about as simple as it gets. attempting an /etc/init.d/networking restart results in an error stating it can't resolve eth0. I need to remove the eth1 entry and properly set up eth0, but can't.

Here is my interfaces file:
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# This is a list of hotpluggable network interfaces.
# They will be activated automatically by the hotplug subsystem.

Here is my nm-system-settings.conf:
[main]
plugins=ifupdown,keyfile

[ifupdown]
managed=false

If I go into my bios and disable the onboard nic, the nm-applet will appear in the top panel showing no defined interfaces. Network Configuration still shows my "phantom" eth0 and eth1 and neither has an ip address or mac address assigned.

If I could just get rid on the phantom eht1 and configure eth0, I suspect things would be back to normal.