[Bug 574456] Re: hotplug-style bonding does not work after reboot - "service networking restart" needed to get it working

[Shawn Teague]

Seems the "bond-primary eth0 eth1" stanza was the key I was missing.

You have been most helpful.  Thank you

As for the 
> auto bond0.40
> iface bond0.40 inet manual
stanzas, are they not required in order to create the required bridges (used wholly by vm instances and not by the host)

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https://bugs.launchpad.net/bugs/574456

Title:
  hotplug-style bonding does not work after reboot - "service networking
  restart" needed to get it working

Status in “ifenslave-2.6” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: ifenslave-2.6

  i just installed a fresh ubuntu 10.04 lts and tried to get bonding to
  work.

  i used the hotplug style as  suggested in the release notes ob 10.04 -
  but it only works as long as i don't reboot the system! when the
  system gets rebootet you have to restart networking service.

  kernel version:
  Linux 1004 2.6.32-21-generic-pae #32-Ubuntu SMP Fri Apr 16 09:39:35 UTC 2010 i686 GNU/Linux
  package:
  ifenslave-2.6                       1.1.0-14ubuntu2

  /etc/network/interfaces:
  auto bond0
  iface bond0 inet static
          address 192.168.10.10
          netmask 255.255.255.0
          gateway 192.168.10.1
          bond-slaves none
          bond-mode 1
          bond-miimon 100

  auto eth0
  iface eth0 inet manual
          bond-master bond0
          bond-primary eth0 eth1

  auto eth1
  iface eth1 inet manual
          bond-master bond0
          bond-primary eth0 eth1

  this does not work after reboot of the system!
  when i use the old style with loaded module it works for me.

  working example:
  /etc/modprobe.d/bonding
  install bond0 /sbin/modprobe bonding -o bond0 mode=balance-xor miimon=100

  /etc/network/interfaces:
  auto bond0
  iface bond0 inet static
          address 192.168.10.10
          netmask 255.255.255.0
          gateway 192.168.10.1
          post-up ifenslave bond0 eth0 eth1
          pre-down ifenslave -d bond0 eth0 eth1

  i hope this infos help to get the "hotplug-stlye" version up and
  running even if a system reboots! :-)

  thx
  manfred

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