Network interface unavailable in copied Turnkey

Thanks for diagnosing the issue, I'm sure it will help others with similar problems.

 After googling around in various forums, I've pieced together the solution. 

Hope this is useful for whomever is configuring and re-deploying Turnkey Linux in Virtual Machines.

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Important: You must log in to the console / terminal as root or as a sudo user.

If you are in Turnkey Linux Configuration Console, you need to Quit it first.

1. Open the following file in nano

# nano etc/udev/rules.d/70-persistent-net.rules

2. You will see lines that look like the following. There may be more than 1 set. Delete them all to remove existing network interface mappings.

# PCI device xxxxxxxxxxx (modulename)

SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="xx:xx:xx:xx:xx:xx", NAME="eth0"

3. Restart udev to make the changes come into effect

# /etc/init.d/udev restart

4. Open the previous file again

# nano etc/udev/rules.d/70-persistent-net.rules

5. You should see a new set of lines for network interface mappings. Do these 2 things

a) take note of the module name at the end of the line that starts with PCI device

e.g. PCI device 0x1022:0x2000 (pcnet32)

b)  scroll to the end of the line that starts with SUBSYSTEM

Make sure it reads NAME="eth0" (and NOT eth3 or any other number)

6. Now we load and reload the module. In this example, pcnet32 is the module name (use the name of the module you noted in Step 5a)

# modprobe -r pcnet32
# modprobe pcnet32

7. Ok reboot and you're good to go!

# reboot

Just to add a bit more detail, it seems that that no network interface can be found.

When I key in

# ifconfig eth0 

I get the output

# eth0: error fetching interface information: Device not found

How can I "force" the appliance to re-detect and reconfigure the network interface? Thank you