[Bug 1023486] Re: Cannot resolve domain names if eth0 is in /etc/network/interfaces

[Brendan Donegan]

Any progress on this bug? It blocks us from getting test results for
Quantal so it would be good if it was fixed soon.

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Title:
  Cannot resolve domain names if eth0 is in /etc/network/interfaces

Status in “resolvconf” package in Ubuntu:
  Triaged

Bug description:
  I installed two systems with Quantal via a preseed. After booting,
  neither of them could connect to the web. A workaround was to remove
  the eth0 section from /etc/network/interfaces (which the preseed
  added). This is the interfaces file before:

  auto lo
  iface lo inet loopback

  auto eth0
  iface eth0 inet dhcp

  After restarting network-manager service it worked again immediately.

  It was also suggested that the state of resolv.conf on the system
  might be a problem:

  nameserver 209.6.3.210
  nameserver 127.0.0.1
  search lexenab

  Removing nameserver 127.0.0.1 and restarting networking/resolvconf and
  network-manager seemed to fix it.

  (having looked at the resolv.conf file after it worked again the
  127.0.0.1 is back, which is interesting)

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: network-manager 0.9.4.0+git201206081144.2efeac8-0ubuntu1
  ProcVersionSignature: Ubuntu 3.5.0-4.4-generic 3.5.0-rc6
  Uname: Linux 3.5.0-4-generic x86_64
  ApportVersion: 2.3-0ubuntu4
  Architecture: amd64
  Date: Wed Jul 11 11:41:31 2012
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120711.1)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: network-manager
  UpgradeStatus: No upgrade log present (probably fresh install)

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