Baseboard management controller firmware update

A baseboard management controller (BMC) may comprise a processor, a non-volatile memory and a volatile memory. The non-volatile memory comprises firmware categorized into a plurality of independently updatable service modules. Each of the independently updatable service modules is stored on a read-write partition of the non-volatile memory and comprises at least one of an application, a library and a driver. The BMC comprises an update agent that performs an update process. In the update process, a BMC update package, which comprises an update service module for updating an existing service module stored in one of the plurality of RW partitions, is stored in the volatile memory. The existing service module stored in the RW partition is replaced with the update service module.