Comment 5 for bug 292054

The NetworkManager is disabling my ethernet card and making it impossible to login to Intrepid, and I wonder if this is a related problem. The ethernet works fine in single user recovery mode, but it has been impossible to log into my machine for three days. I am desperate.

uname -a (in single user mode) returns:
  Linux CERTIBY-DEV1 2.6.27-7-generic #1 SMP Thu Oct 30 04:12:22 UTC 2008 x86_64 GNU/Linux

I upgraded from Hardy (which worked fine) using sudo do-release-upgrade

In /var/log/daemon.log I see:

   CERTIBY-DEV1 NetworkManager <info> (eth0) device state change: 1 -> 2
   CERTIBY-DEV1 NetworkManager <info> (eth0) preparing device.
   CERTIBY-DEV1 NetworkManager <info> (eth0) deactivating device.
   CERTIBY-DEV1 NetworkManager <WARN> check_one_route(): (eth0) error -34 returned from rtnl_route_del(): Sucess
   CERTIBY-DEV1 avahi-daemon [5382]: Withdrawing address record for 10.10.10.84 on eth0.
   CERTIBY-DEV1 avahi-daemon [5382]: Leaving mDNS multicast group on interface eth0.IPv4 with address 10.10.10.84.
   CERTIBY-DEV1 avahi-daemon [5382]: Interface eth0.IPv4 no longer relevant for mDNS.
   CERTIBY-DEV1 NetworkManager <info> Setting system hostname to 'localhost@localdomain' (no default device)
   CERTIBY-DEV1 NetworkManager <info> (eth0) device state change: 2 -> 3