raspbian-ua-netinst:

The minimal Raspbian unattended netinstaller for Raspberry Pi Model 1B, 1B+ and 2B (with pre-release installer).

echo -n "WHAT DO YOU THINK........."
echo -n "Enable Camera in config.txt... "
echo "start_x=1" >> /rootfs/boot/config.txt
echo "gpu_mem=128" >> /rootfs/boot/config.txt
echo "OK"

if [ ! -d /etc/modprobe.d/ ] ; then
    echo -n "Creating /etc/modprobe.d/... "
    chroot /rootfs mkdir -p /etc/modprobe.d/
    echo "OK"
fi

# blacklist i2c since it prevents the camera from working
echo -n "Blacklisting i2c module... "
echo "blacklist i2c-bcm2708" > /rootfs/etc/modprobe.d/camera-blacklist.conf
echo "OK"

http://www.pihomeserver.fr/en/2014/09/30/raspberry-pi-home-server-installer-raspbian-reseau/

https://hreikin.wordpress.com/2014/06/21/raspberry-pi-how-to-create-your-own-pi-os/

http://www.linuxsystems.it/raspbian-wheezy-armhf-raspberry-pi-minimal-image/

https://www.raspberrypi.org/forums/viewtopic.php?f=66&t=50310&start=100