[Bug 1556241] [NEW] installer sets "iface encf5f0 inet dhcp" although a static IP address was preseeded

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== Comment: #0 - Thorsten Diehl - 2016-03-11 12:49:44 ==
I installed xenial with installer version 432 and a preseed file that has a IPv4 static configuration. Upon the initial boot after installation, everything is fine, system comes up with network. When I perform a reboot, the network service waits for "something" and prints continuously messages aka "A start job is running for Raise network interfaces (3min 14s / 5min)". After that, the network is up.
I found, that it was waiting for DHCP responses. (attaching /var/log/syslog).
/etc/network/interfaces looks like this:
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto encf5f0
iface encf5f0 inet static
	address 9.152.162.158
	netmask 255.255.252.0
	network 9.152.160.0
	broadcast 9.152.163.255
	gateway 9.152.160.1
	# dns-* options are implemented by the resolvconf package, if installed
	dns-nameservers 9.152.120.241
	dns-search boeblingen.de.ibm.com
/etc/network/interfaces.d/encf5f0 looks like this:
allow-hotplug encf5f0
iface encf5f0 inet dhcp
which seems to be the cause. After removing the second line, it worked as expected.

Not sure, whether this is the best approach. I just wanted to point to
the root cause. But starting a dhcp client when you have a static IP
address configured is definitely wrong.

== Comment: #2 - Thorsten Diehl <thorsten.diehl at de.ibm.com> - 2016-03-11 12:55:54 ==
uname -r
4.4.0-12-generic

** Affects: snappy (Ubuntu)
     Importance: Critical
     Assignee: Dimitri John Ledkov (xnox)
         Status: Confirmed

** Affects: ubuntu-snappy (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: architecture-s39064 bugnameltc-138879 severity-critical targetmilestone-inin1604
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installer sets "iface encf5f0 inet dhcp" although a static IP address was preseeded
https://bugs.launchpad.net/bugs/1556241
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