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[Launchpad Bug Tracker <1551747@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package ubuntu-fan - 0.11.0

---------------
ubuntu-fan (0.11.0) yakkety; urgency=medium

  * fanctl: fix net start/stop exit codes. (LP: #1551747)

 -- Andy Whitcroft <apw@xxxxxxxxxx>  Mon, 06 Jun 2016 12:01:45 +0100

** Changed in: ubuntu-fan (Ubuntu Yakkety)
       Status: In Progress => Fix Released

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Title:
  ubuntu-fan causes issues during network configuration

Status in cloud-init:
  New
Status in Snappy:
  Confirmed
Status in ubuntu-fan package in Ubuntu:
  Fix Released
Status in ubuntu-fan source package in Xenial:
  In Progress
Status in ubuntu-fan source package in Yakkety:
  Fix Released

Bug description:
  it seems that ubuntu-fan is causing issues with network configuration.

  On 16.04 daily image:

  root@localhost:~# snappy list
  Name                Date       Version          Developer
  canonical-pi2       2016-02-02 3.0              canonical
  canonical-pi2-linux 2016-02-03 4.3.0-1006-3     canonical
  ubuntu-core         2016-02-22 16.04.0-10.armhf canonical

  I see this when I'm activating a wifi card on a raspberry pi 2.

  root@localhost:~# ifdown wlan0
  ifdown: interface wlan0 not configured
  root@localhost:~# ifup wlan0
  Internet Systems Consortium DHCP Client 4.3.3
  Copyright 2004-2015 Internet Systems Consortium.
  All rights reserved.
  For info, please visit https://www.isc.org/software/dhcp/

  Listening on LPF/wlan0/c4:e9:84:17:31:9b
  Sending on   LPF/wlan0/c4:e9:84:17:31:9b
  Sending on   Socket/fallback
  DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 3 (xid=0x81c0c95e)
  DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 5 (xid=0x81c0c95e)
  DHCPREQUEST of 192.168.0.170 on wlan0 to 255.255.255.255 port 67 (xid=0x5ec9c081)
  DHCPOFFER of 192.168.0.170 from 192.168.0.251
  DHCPACK of 192.168.0.170 from 192.168.0.251
  RTNETLINK answers: File exists
  bound to 192.168.0.170 -- renewal in 17145 seconds.
  run-parts: /etc/network/if-up.d/ubuntu-fan exited with return code 1
  Failed to bring up wlan0.

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