[Bug 850226] [NEW] static-network-up script waits for 'auto' devs without a config stanza

[Scott Moser]

Public bug reported:

Bug 838968 changed the behavior to block parts of boot waiting for
'auto' network interfaces to come up, by creating a  static-network-up
upstart event in /etc/network/if-up.d/upstart.

There is a bug in that code, though, were it looked only for 'auto' entries in /etc/network interfaces.  If there was a stanza like:
  auto eth0
then this event would wait for eth0 to come up.
This differed from the behavior of 'ifup -a' as 'ifup -a' would not wait for that device unless it also had a configuration.
For example, ifup -a would wait for:
 auto eth0
 iface eth0 inet dhcp
but not for:
 auto eth0

It turns out that it is not uncommon to have 'auto eth0' in an /etc/network/interfaces file without a network.
This was discussed in ubuntu-devel at [1] and then again at [2].

--
[1] http://irclogs.ubuntu.com/2011/09/14/%23ubuntu-devel.html#t00:10
[2] http://irclogs.ubuntu.com/2011/09/14/%23ubuntu-devel.html#t16:38

related bugs:
 bug 850166: ifquery does not respect mappings
 bug 838968: static-network-up event does not wait for interfaces to have an address

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: ifupdown 0.7~alpha5.1ubuntu4
ProcVersionSignature: Ubuntu 3.0.0-10.16-generic 3.0.4
Uname: Linux 3.0.0-10-generic x86_64
ApportVersion: 1.22.1-0ubuntu2
Architecture: amd64
Date: Wed Sep 14 13:58:54 2011
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta amd64 (20100318)
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, user)
 LANG=en_US.UTF-8
SourcePackage: ifupdown
UpgradeStatus: Upgraded to oneiric on 2010-11-15 (302 days ago)

** Affects: ifupdown (Ubuntu)
     Importance: Medium
     Assignee: Scott Moser (smoser)
         Status: In Progress


** Tags: amd64 apport-bug oneiric running-unity

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to ifupdown in Ubuntu.
https://bugs.launchpad.net/bugs/850226

Title:
  static-network-up script waits for 'auto' devs without a config stanza

Status in “ifupdown” package in Ubuntu:
  In Progress

Bug description:
  Bug 838968 changed the behavior to block parts of boot waiting for
  'auto' network interfaces to come up, by creating a  static-network-up
  upstart event in /etc/network/if-up.d/upstart.

  There is a bug in that code, though, were it looked only for 'auto' entries in /etc/network interfaces.  If there was a stanza like:
    auto eth0
  then this event would wait for eth0 to come up.
  This differed from the behavior of 'ifup -a' as 'ifup -a' would not wait for that device unless it also had a configuration.
  For example, ifup -a would wait for:
   auto eth0
   iface eth0 inet dhcp
  but not for:
   auto eth0

  It turns out that it is not uncommon to have 'auto eth0' in an /etc/network/interfaces file without a network.
  This was discussed in ubuntu-devel at [1] and then again at [2].

  --
  [1] http://irclogs.ubuntu.com/2011/09/14/%23ubuntu-devel.html#t00:10
  [2] http://irclogs.ubuntu.com/2011/09/14/%23ubuntu-devel.html#t16:38

  related bugs:
   bug 850166: ifquery does not respect mappings
   bug 838968: static-network-up event does not wait for interfaces to have an address

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: ifupdown 0.7~alpha5.1ubuntu4
  ProcVersionSignature: Ubuntu 3.0.0-10.16-generic 3.0.4
  Uname: Linux 3.0.0-10-generic x86_64
  ApportVersion: 1.22.1-0ubuntu2
  Architecture: amd64
  Date: Wed Sep 14 13:58:54 2011
  EcryptfsInUse: Yes
  InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta amd64 (20100318)
  ProcEnviron:
   SHELL=/bin/bash
   PATH=(custom, user)
   LANG=en_US.UTF-8
  SourcePackage: ifupdown
  UpgradeStatus: Upgraded to oneiric on 2010-11-15 (302 days ago)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/ifupdown/+bug/850226/+subscriptions