BUG(Makefile):aura-user.add did not create shell
make aura-user.add did not create a shell for user aura. Without that you can not change to user aura.
This can be fixed with sudo adduser --home ${AURA_HOME} --no-create-home --system --uid ${AURA_UID} --group ${AURA_USER} --shell /bin/bash
at line 38