vmware update manager 可以用来升级 vcenter吗

很遗憾的告诉你，UPDATE MANAGER只针对于ESX host,
下面是从VMWARE官网上原文。没有写到UPDATE MANAGER 可以给VCENTER升级。

Update Manager works with the following ESX/ESXi versions.

*For virtual machine patching operations, Update Manager works with ESX 3.5 and later and ESX 3i version 3.5 and later.

*For VMware Tools and virtual machine hardware upgrade operations, Update Manager works with ESX/ESXi version 4.0 and later.

*For ESX/ESXi host patching operations, Update Manager works with ESX 3.0.3 and later, ESX 3i version3.5 and later.

*For ESX/ESXi host upgrade operations, Update Manager works with ESX 3.0.0 and later, ESX 3i version3.5 and later.

这是文档链接。http://www.vmware.com/pdf/vsp_vum_40_admin_guide.pdf
如果想升级VCENTER,你可以参考这篇文档。https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2053130#
我想知道你当前版本是什么。想升到什么版本？