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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.di...@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
--
installer sets "iface encf5f0 inet dhcp" although a static IP address was
preseeded
https://bugs.launchpad.net/bugs/1556241
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