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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:

apport-collect 1311070

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1311070

Title:
  hyper-v:IP Injection on Ubuntu 13.10 guest during Failover and Test
  Failover is corrupting the existing entries

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  [HyperV Replica :: http://technet.microsoft.com/en-us/library/jj134172.aspx]
   [Guest IP Injection :: http://blogs.technet.com/b/virtualization/archive/2012/05/29/inject-ip-address-into-the-vm-during-failover.aspx]

  hv_set_ifconfig script is corrupting the last entry inside
  /etc/network/interfaces.

  It is creating 2 entries for eth1 Leading to failure of IP Injection.

  
  1) Create Ubuntu 13.10 virtual machine.
   
  2) Attach network adapters 'Network Adapter' and 'Adapter2' on primary and configured via DHCP.
  cat /etc/network/interfaces
  # 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
  # The primary network interface
  auto eth0
          iface eth0 inet dhcp
  auto eth1
          iface eth1 inet dhcp

  3) Enable Replication.
   
  4) Set Failover IP settings on second adapter (Adapter2)
  Set-VMNetworkAdapterFailoverConfiguration -ComputerName $computerName -VMName $vmname -IPv4Address 192.168.100.10 -IPv4SubnetMask 255.255.0.0 -IPv4PreferredDNSServer 192.168.100.101 -IPv4AlternateDNSServer 192.168.100.102 -IPv4DefaultGateway 192.168.100.1 -VMNetworkAdapterName 'Adapter2'
   
  5) Do Failover
  cat /etc/network/interfaces
  # 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
  # The primary network interface
  auto eth0
  iface eth0 inet dhcp
  iface eth1 inet dhcp
  # The following stanza(s) added by hv_set_ifconfig
  auto eth1
  iface eth1 inet static
          address 192.168.100.10
          netmask 255.255.0.0
          gateway 192.168.100.1
          dns-nameservers 192.168.100.101 192.168.100.102
  #End of hv_set_ifconfig stanzas

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