Comment 0 for bug 1570142

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).

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)