Installer fail to load kernel modules when using kickstart

[Adrien Bresson]

## Ubuntu version ##
ubuntu-16.10-server-amd64

## Environment ##
VirtualBox 5.1.6

## Problem description ##
Ubuntu server installer fail to load kernel modules when a kickstart file is used as boot parameter. The installer is then unable to detect network interfaces (because module e1000 is not loaded) and fail
https://ibin.co/3DTY1ZsdqEud.jpg
https://ibin.co/3DTYIkXmSwmt.jpg

## How to reproduce ##
The bug happens with VirtualBox but also with all physical machines I tested the kickstart installation on.
To reproduce this bug you just have to start a new VirtualBox Linux VM and start a new ubuntu server installation with boot option "ks=http://foo.bar/ks.cfg"
https://ibin.co/3DTkQZRuGLZN.jpg

Here is the command line used to boot (more information available within the attached syslog file):
Kernel command line: file=/cdrom/preseed/ubuntu-server.seed vga=788 initrd=/install/initrd.gz DEBCONF_DEBUG=5 ks=http://foo.bar/ks.cfg --- keyboard-configuration/layoutcode=fr keyboard-

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1667605/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.