Nutanix LCM architecture supports firmware, BIOS, BMC, disk controller, and drive updates only when the environment includes multiple nodes that can provide redundancy during the upgrade process. The LCM documentation specifies that firmware upgrades require node evacuation and rolling upgrade sequencing so that workloads remain available. A single-node cluster does not have node-level redundancy and therefore cannot support firmware upgrade operations that require putting a node into maintenance automatically. The guidance clearly states that “firmware upgrades are not supported for single-node clusters because the host cannot be safely placed into a maintenance mode during the LCM workflow.” LCM is supported for software inventory, but not for firmware activation on single-node clusters. This explains why no firmware updates appear in the LCM interface.