On a Linux Machine:
$ ./build_template_linux.sh
tmpfs is not used!
Simulator Build started...
==========================
make: rtt_simulator.mk: No such file or directory
make: *** No rule to make target 'rtt_simulator.mk'. Stop.
$
build_template_linux.sh is a script which is called from within build_template.sh when docker machine is launched. To build on linux natively, use build_native_linux.sh