[Bug 881379] Re: ifenslave fails to bring up bond link

[Stéphane Graber]

The patch is wrong as it just moves the race condition further in the
boot process but the real bug has been fixed in Ubuntu Precise so I'm
marking the bug fix released.

ifenslave-2.6, vlan and bridge-utils in precise (to become Ubuntu 12.04
LTS) have been reworked to avoid any race condition and to properly deal
with event based boot.

** Changed in: ifenslave-2.6 (Ubuntu)
       Status: Confirmed => Fix Released

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https://bugs.launchpad.net/bugs/881379

Title:
  ifenslave fails to bring up bond link

Status in “ifenslave-2.6” package in Ubuntu:
  Fix Released

Bug description:
  After upgrade of ubuntu-server from maveric to oneiric, a bond link
  failed to automatically get up on system startup.

  The network is configured as follows and the configuration was not
  changed:

  root at srv2:/etc/network/if-pre-up.d# 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 bond0
  iface bond0 inet manual
  	slaves eth0 eth1
  	bond_mode 4
  	bond_miimon 100
  	bond_downdelay 200
  	bond_updelay 200
  	bond_lacp_rate 1

  auto bond0.904
  iface bond0.904 inet manual

  auto vmbr0
  iface vmbr0 inet static
          bridge_ports bond0.904
          bridge_stp off 
  	address 192.168.220.2
  	netmask 255.255.255.0
  	network 192.168.220.0
  	broadcast 192.168.220.255
  	gateway 192.168.220.254

  
  The simple solution is to change line order of "enslave_slaves" in /etc/network/if-pre-up.d/ifenslave -- se attached diff

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