Systems and methods for provisioning building equipment are provided. A disclosed provisioning system includes a main control unit having a processing circuit, a memory device, and a data communications interface. The provisioning system further includes an auxiliary control unit and a portable data storage device. The portable data storage device is physically separate from the main control unit and has an update file stored therein. The update file includes a plurality of partitions, each partition including provisioning data and metadata. The main control unit identifies a first partition of the update file containing first provisioning data for the main control unit and a second partition of the update file containing second provisioning data for the auxiliary control unit. The processing circuit is configured to extract the provisioning data from the identified partitions and to apply the extracted provisioning data to the main control unit and the auxiliary control unit.