[Bug 1307429] Re: Existing allow-hotplug devices do not come up

[Launchpad Bug Tracker]

This bug was fixed in the package ifupdown - 0.7.47.2ubuntu4.1

---------------
ifupdown (0.7.47.2ubuntu4.1) trusty-proposed; urgency=medium

  * Fix network-interface upstart job to bring up allow-hotplug devices.
    (LP: #1307429)
 -- Benjamin Drung <benjamin.drung at profitbricks.com>   Thu, 08 May 2014 16:41:11 +0200

** Changed in: ifupdown (Ubuntu Trusty)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1307429

Title:
  Existing allow-hotplug devices do not come up

Status in “ifupdown” package in Ubuntu:
  Fix Released
Status in “ifupdown” source package in Precise:
  Fix Committed
Status in “ifupdown” source package in Saucy:
  Fix Committed
Status in “ifupdown” source package in Trusty:
  Fix Released

Bug description:
  SRU Justification:
  [Impact]
  Devices that are listed with allow-hotplug in /etc/network/interfaces do not come up when they are hotplugged. "ip addr" shows that these devices are down.

  [Test Case]
  Steps to reproduce:

  1) Install Ubuntu 12.04, 13.10, or 14.04 in a virtual machine (e.g. with libvirt) with one network device.
  2) Modify /etc/network/interfaces to

  auto lo
  iface lo inet loopback
  allow-hotplug eth0
  iface eth0 inet dhcp
  allow-hotplug eth1
  iface eth1 inet dhcp
  allow-hotplug eth2
  iface eth2 inet dhcp

  3) Boot your virtual machine.
  4) Type "ip addr" to show your network devices. It should show eth0 which should be up (but isn't)
  5) Add/Hotplug one NIC to your virtual machine.
  6) "ip addr" should show that eth1 is up too (but isn't)

  [Regression Potential]
  Patch is already in Utopic.

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