This page describes running O-DU High using test stubs, namely CU Stub and RIC Stub. O-DU High also uses Phy Stub in the absence of O-DU Low. However, Phy Stub is built as a part of the O-DU High image itself.
Cloning code
mkdir odu_high cd odu_high git clone "https://sphoorthi@gerrit.o-ran-sc.org/r/a/o-du/l2"