Multiple VMware vSphere components are upgraded when you upgrade using Update Manager.

The following vSphere components are upgraded by Update Manager.

Virtual machine kernel (vmkernel)

Service console, where present

Virtual machine hardware

VMware Tools

Guest operating systems service packs and patch releases

For components that are not listed here, you can perform the upgrade by some other method, generally by using the vSphere Client.

After the upgrade to ESX 4.1, the service console's partitions are stored in a .vmdk file. These partitions include /, swap, and all the optional partitions. The name of this file is esxconsole-system-uuid/esxconsole.vmdk. All .vmdk files, including the esxconsole.vmdk, are stored in VMFS volumes.