[Bug 806284] Re: nfs-kernel-server fails: hostname "has non-inet addr" on boot, before eth0 comes up

[Clint Byrum]

This seems oddly similar to bug #862928 , which states that it is about
NetworkManager, but is really the same problem.

net-device-up IFACE!=lo is not sufficient. Some servers have many
network interfaces, and the remote network services they provide should
not be started until all of them are up.

On 11.10 and later, this is handled by the static-network-up event,
which gates runlevel 2 (or at least, slows it down for 2 minutes until
we kick off the failsafe boot). I wonder if this problem still exists on
Ubuntu 11.10.

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https://bugs.launchpad.net/bugs/806284

Title:
  nfs-kernel-server fails: hostname "has non-inet addr" on boot, before
  eth0 comes up

Status in “nfs-utils” package in Ubuntu:
  Triaged

Bug description:
  I upgraded my server to Natty and now the two directories that this
  server exports to various other machines on the network, do not get
  exported during an ordinary bootup.  However, after startup, if I run
  "exportfs -av" on them, they export just fine.

  /var/log/syslog shows:

    Jul  5 16:17:54 om exportfs[1585]: name1.frob.com has non-inet addr

    Jul  5 16:17:54 om exportfs[1585]: last message repeated 3 times

    Jul  5 16:17:54 om exportfs[1585]: name2.frob.com has non-inet addr

    Jul  5 16:17:54 om exportfs[1585]: name2.frob.com has non-inet addr

  (I've replaced the actual names with name1.frob.com and
  name2.frob.com).

  The problem appears to occur because NetworkManager is still in the
  process of bringing up the network interface (according to other
  interleaved syslog reports).  These hostnames need DNS from another
  server to resolve them.

  The root cause of the problem appears to be that Natty doesn't make
  the nfs-kernel-server service wait until the first Ethernet comes up.
  Thus, nfs-kernel-service can't resolve domain names in the
  /etc/exports file, and it produces this very confusing message and
  doesn't actually export the filesystems.

  Ubuntu release:  11.04 (natty)
  Version of nfs-utils: Installed: 1:1.2.2-4ubuntu5

  Related programs: upstart, NetworkManager

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