Failed to load kernel module during python-rtslib-fb package installation

[Ivan Udovichenko]

Installation of python-rtslib-fb package fails on our CI:
"""
Setting up python-rtslib-fb (2.1.57-1~u14.04+mos1) ...
update-alternatives: using /usr/bin/targetctl-python2 to provide /usr/bin/targetctl (targetctl) in auto mode
 * Loading rstlib-fb targetctl targetctl
Traceback (most recent call last):
  File "/usr/bin/targetctl", line 82, in <module>
    main()
  File "/usr/bin/targetctl", line 79, in main
    funcs[sys.argv[1]](savefile)
  File "/usr/bin/targetctl", line 47, in restore
    errors = RTSRoot().restore_from_file(restore_file=from_file)
  File "/usr/lib/python2.7/dist-packages/rtslib_fb/root.py", line 67, in __init__
    modprobe('target_core_mod')
  File "/usr/lib/python2.7/dist-packages/rtslib_fb/utils.py", line 392, in modprobe
    raise RTSLibError(stderrdata)
rtslib_fb.utils.RTSLibError: modprobe: FATAL: Module target_core_mod not found.

   ...fail!
invoke-rc.d: initscript rtslib-fb-targetctl, action "start" failed.
dpkg: error processing package python-rtslib-fb (--configure):
 subprocess installed post-installation script returned error exit status 1
"""

root@trustyserver:~# modprobe target_core_mod
modprobe: FATAL: Module target_core_mod not found.
root@trustserv:~# uname -a
Linux trustyserver 3.13.0-86-generic #131-Ubuntu SMP Thu May 12 23:33:13 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

[Bug Checker Bot (bug-checker)]

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[Fuel Devops McRobotson (fuel-devops-robot)]

Fix proposed to branch: master
Change author: Dmitry Burmistrov <email address hidden>
Review: https://review.fuel-infra.org/21545

[Fuel Devops McRobotson (fuel-devops-robot)]

Reviewed: https://review.fuel-infra.org/21545
Submitter: Vitaly Parakhin <email address hidden>
Branch: master

Commit: f0fac369b129de7a75751a0f6a4b27e30e956663
Author: Dmitry Burmistrov <email address hidden>
Date: Thu Jun 2 09:55:21 2016

[install][deb] Install additional kernel modules

   It is required for some packages under test

Change-Id: I50383673ee54f8044cf68b3d871f9ca36c06b90b
Closes-Bug: #1588235