Ubuntu
ifupdown package

  1. Bug #497299
  2. Comment #14

Comment 14 for bug 497299

Revision history for this message
squarooticus (krose) wrote :

Steve, even with an empty interfaces file, my localhost interface is getting brought up *somehow*:

krose@nausicaa:/etc/network % ifconfig lo
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:6379496 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6379496 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:3878093406 (3.8 GB) TX bytes:3878093406 (3.8 GB)

which means that whatever mechanism upstart is using to receive notifications of interfaces going up or down is not getting all of them. I assume that means one or more of upstart, udev, or NetworkManager is broken. How does upstart receive notification that the interface has been brought up?