** No longer affects: cloud-init (Ubuntu)

** No longer affects: maas-images

** No longer affects: cloud-init

** Description changed:

  newer ifupdown versions (those in xenial) now keep interface state in
  /run/network/ifstate.<interfacename> rather than combined in
  /run/network/ifstate .
  
  We need to update /lib/open-iscsi/net-interface-handler to write the
  interface name into /run/network/ifstate.<interfacename> and then also
  tear that down on down.
  
  The failure can be seen when booting a maas image, if you first move the 
included symlink out of the way:
  p="/etc/network/interfaces";
   [ -e "$p.link" -o -L "$p.link" ] || mv "$p" "$p.link"; cp "$p.dist" "$p"
  
  (maas images ship with /etc/network/interfaces as a symlink to 
../../run/network/dynamic-interfaces
  and /run/network/dynamic-interfaces is populated by 
cloud-initramfs-dyn-netconf).
  
  This affects:
-   * cloud-init: cloud-init's fallback config currently writes 'auto' for the 
network device. the cloud-initramfs-dyn-netconf writes 'manual', and so 
ifupdown doesn't try to bring up *or* down the device.
-   * maas-images: the single difference from filesystem viewpoint from xenial 
lxd image to maas image is 'ln -snf ../../run/dynamic-interfaces 
/etc/network/interfaces'
-   * open-iscsi: the real need for open-iscsi's udev integration is to get the 
resolvconf updates applied.
+   * cloud-init: cloud-init's fallback config currently writes 'auto' for the 
network device. the cloud-initramfs-dyn-netconf writes 'manual', and so 
ifupdown doesn't try to bring up *or* down the device.
+   * maas-images: the single difference from filesystem viewpoint from xenial 
lxd image to maas image is 'ln -snf ../../run/dynamic-interfaces 
/etc/network/interfaces'
+   * open-iscsi: the real need for open-iscsi's udev integration is to get the 
resolvconf updates applied.
+ 
+ Related bugs:
+  * bug 1568637:  network config of initramfs devices writes 'auto', breaking 
iscsi root boot 
  
  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: open-iscsi 2.0.873+git0.3b4b4500-14ubuntu1
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
  Date: Wed Apr 13 23:58:27 2016
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
  SourcePackage: open-iscsi
  UpgradeStatus: No upgrade log present (probably fresh install)

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https://bugs.launchpad.net/bugs/1570142

Title:
  net-interface-handler needs updating for newer ifupdown

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