The instance manifest is customized for the operating system it runs on.
This is a sample manifest file:
INSTANCE_SET_NAME=sampleinst-1.0-5.0.0.0.177 REQUIRED_APPLICATION_VERSION=5.0.0.0.177 RELEASE_ID=1 INSTANCE_SET_PACKAGES=CN-sampleinst-1.0-5.0.0.0.177.i386.rpm