[Bug 893292] Re: Linux-3.0.0-13 upgrade breaks networking + simple temporary fix

[David Favor]

To clarify... Machine booted fine @ Kernel 3.0.0-12 and upgrade only
installed Kernel 3.0.0-13 packages.

This is odd as the problem occurs in the netbase package and no netbase
or upstart package updates occurred.

My guess is something has changed in the way tmpfs mounting occurs...
maybe...

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https://bugs.launchpad.net/bugs/893292

Title:
  Linux-3.0.0-13 upgrade breaks networking + simple temporary fix

Status in “ifupdown” package in Ubuntu:
  New

Bug description:
  Upgrading Ubuntu-11.10 from kernel-3.0.0-12 to kernel-3.0.0-13 breaks
  networking, rendering machines unbootable.

  Problem is missing /run/network directory reported when
  '/etc/init.d/networking restart' is run manually.

  Multiple problems...

  1) /etc/init/networking.conf creates /var/run/network instead of
  /run/network

  2) /run/network never populated

  Fix seems to be changing /etc/init/networking.conf as follows:

  1) change mkdir -p /var/run/network to /run/network

  2) exec /etc/network/if-up.d/upstart to populate /run/network

  /etc/network/if-up.d/upstart is what's called in /etc/init.d/networking to populate /run/network,
  so that's what's used in this fix. There may be a more correct way to do this.

  This doesn't work though, as it appears tmpfs gets mounted over
  /run/network after networking.conf runs.

  For now, adding the following big, ugly, simple hack to /etc/rc.local

  mkdir -p /run/network && /etc/init.d/networking restart

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