Installed LinuxCNC from live distribution

http://www.linuxcnc.org/linuxcnc-2.7-wheezy.iso

Installed Ethercat HAL Driver
These instructions are taken from LinuxCNC wiki:
http://wiki.linuxcnc.org/cgi-bin/wiki.pl?EtherCatDriver

Create a file /etc/apt/sources.list.d/linuxcnc-mds.list and add a line specifying the debian package the ethercat HAL driver:

sudo touch /etc/apt/sources.list.d/linuxcnc-mds.list 

Enable RW permissions to the file for all users:

sudo chmod 666 /etc/apt/sources.list.d/linuxcnc-mds.list 


Add a line to the file for the debian package entry the ethercat HAL driver: 

echo deb http://repo.modusoft.de/linuxcnc/wheezy ./ >> /etc/apt/sources.list.d/linuxcnc-mds.list

Download the package:

sudo apt-get update


Install the package:

sudo apt-get install linuxcnc-ethercat


Edit /etc/default/ethercat to match the hardware of the installation PC.
Firstly, enable RW permissions of /etc/default/ethercat to allow editing:

sudo chmod 666 /etc/default/ethercat

Edit /etc/default/ethercat to match the hardware of the installation PC:

pico /etc/default/ethercat

Settings:

MASTER0_DEVICE="00:15:58:7d:97:06" 

DEVICE_MODULES="e1000e" 


Updated the ethercat config:

sudo update-ethercat-config

Build the linuxCNC-etherCAT driver
First download the etherlabmaster-dev Deb package to allow the linuxcnc-ethercat driver to be built:

sudo apt-get install etherlabmaster-dev

Clone the sittner linuxcnc-ethercat driver git:

git clone https://github.com/sittner/linuxcnc-ethercat.git linuxcnc-ethercat

Make the linuxcnc-ethercat driver:

cd linuxcnc-ethercat
make

Install the linuxcnc-ethercat driver:

sudo make install

Reboot PC to activate the ethercat master.  Done.