I saw this on a ward the other day. With the current state of funding in the NHS, maybe we will be seeing more of these!

Stop persistent networking interface assignment in cloned virtualbox

When a Ubuntu virtualbox is cloned the new box network interfaces will not come up as Ubuntu has added some MAC matching rules. To fix this on the machine that will be cloned, do this:

Add:

# ignore VirtualBox virtual interfaces
ENV{MATCHADDR}=="08:00:27:*", GOTO="persistent_net_generator_end"

to /lib/udev/rules.d/75-persistent-net-generator.rules

and delete the file
/etc/udev/rules.d/70-persistent-net.rules