This document provides an overview of SmartOS, an open source operating system designed for cloud computing. It discusses getting started with SmartOS through USB or PXE boot, managing disks and storage with ZFS, working with virtual machine images and creating VMs using imgadm and vmadm, and configuring networks with dladm including link aggregation. The document is intended as a primer on SmartOS and covers the basic administration tasks for getting up and running with the platform.