This is the LEM Install Guide that should help answer your questions:
In your case, the bottom two sections should answer your specific questions:
Provides LEM Agent deployment options and installation steps.
- Deploying the LEM Agent
- LEM Agent pre-installation checklist
- Install the LEM Agent on Linux
- Install the LEM Agent on Mac OSX 10.7 and later
- Run the Remote Agent Installer non-interactively
- Run the Local Agent Installer non-interactively
- Verify the LEM Agent connection
Provides steps for installing the optional LEM applications.