[Bug 1537136] [NEW] ISST-LTE: no network after install due to interface order change

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== Comment: #0 - Chanh H. Nguyen <chnguyen at us.ibm.com> - 2015-12-10 20:32:29 ==
We use the network to install Ubuntu 14.04.4 version. The installation is successful but then there is no network after system reboot in post install. Checking the network and I saw the order of interface are changed. This is causing no network at all. 

There is 2 cards (Houston 4ports & Mellanox 2 ports). We are using the Mellanox interface for this installation.  
At the installation menu, we select this interface eth2 (mellanox card)

??????????????????????? [!!] Configure the network ????????????????????????
  ?                                                                         ?
  ? Your system has multiple network interfaces. Choose the one to use as   ?
  ? the primary network interface during the installation. If possible,     ?
  ? the first connected network interface found has been selected.          ?
  ?                                                                         ?
  ? Primary network interface:                                              ?
  ?                                                                         ?
  ?       eth0: Emulex Corporation OneConnect NIC (Lancer)                  ?
  ?       eth1: Emulex Corporation OneConnect NIC (Lancer)                  ?
  ?       eth2: Mellanox Technologies MT27500 Family [ConnectX-3]           ?
  ?       eth3: Mellanox Technologies MT27500 Family [ConnectX-3]           ?
  ?       eth4: Emulex Corporation OneConnect NIC (Lancer)                  ?
  ?       eth5: Emulex Corporation OneConnect NIC (Lancer)                  ?
  ?                                                                         ?
  ?     <Go Back>                                                           ?
  ?                                                                         ?
  ???????????????????????????????????????????????????????????????????????????

After install,
root at monklp3:~# ifconfig
eth2      Link encap:Ethernet  HWaddr 00:00:c9:d1:be:28
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:32 errors:0 dropped:0 overruns:0 frame:0
          TX packets:32 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:2368 (2.3 KB)  TX bytes:2368 (2.3 KB)
root at monklp3:~# ifconfig -a|grep eth
eth0      Link encap:Ethernet  HWaddr 00:00:c9:d1:be:26
eth1      Link encap:Ethernet  HWaddr 00:00:c9:d1:be:27
eth2      Link encap:Ethernet  HWaddr 00:00:c9:d1:be:28
eth3      Link encap:Ethernet  HWaddr 00:02:c9:b7:60:b0
eth4      Link encap:Ethernet  HWaddr 00:02:c9:b7:60:b1
eth5      Link encap:Ethernet  HWaddr 00:00:c9:d1:be:29
root at monklp3:~# cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth2
iface eth2 inet dhcp
root at monklp3:~# dmesg |grep "eth"
[    0.950725] ibmveth: IBM Power Virtual Ethernet Driver 1.05
[    0.950735] ehea: IBM eHEA ethernet device driver (Release EHEA_0107)
[    9.810472] mlx4_en: eth3: Link Up
[   40.554271] be2net 0001:80:00.2 eth2: Link is Down
[   40.560738] IPv6: ADDRCONF(NETDEV_UP): eth2: link is not ready
root at monklp3:~#

The mellanox inteface is now on eth3 but on the /etc/network/interface
file, it is set on eth2.

== Comment: #19 - Erwan Prioul <erwan.prioul at fr.ibm.com> - 2016-01-21 06:50:41 ==
This makes me think it's related to https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1473542

Canonical:  please backport to 14.04.4

** Affects: debian-installer (Ubuntu)
     Importance: Undecided
     Assignee: Taco Screen team (taco-screen-team)
         Status: New


** Tags: architecture-ppc64le bugnameltc-134000 severity-high targetmilestone-inin14044
-- 
ISST-LTE: no network after install due to interface order change
https://bugs.launchpad.net/bugs/1537136
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