该环境运行以下应用程序：
> AD目录服务(不会就地升级)
> System Center 2012 R2：
>配置管理器
>运营经理
>虚拟机管理器
>服务经理
> App Controller
> Orchestrator
> sql Server 2012支持System Center产品(无故障转移群集,镜像,传送或AlwaysOn)：
我找不到Microsoft的任何官方文档,说明是否明确支持安装这些产品的就地升级.我想这意味着它得到了支持,但我想我会看到是否有人真的这样做了,或者知道一个方向或另一个方向的官方支持声明.
Configuration Manager supports installing System Center 2012 R2
Configuration Manager to upgrade a site that runs Configuration
Manager SP1. You can run the upgrade on the site servers of central
administration sites and primary sites. After a primary site upgrades,
you can then use the Configuration Manager console to upgrade
secondary sites to System Center 2012 R2 Configuration Manager.
http://technet.microsoft.com/en-us/library/jj822981.aspx
更新的答案：
Window Server 2012到Window Server 2012 R2正式支持就地操作系统升级
Updated details for the in-place upgrade of the site server operating
system. Windows Server 2012 to Windows Server 2012 R2 is supported.
全部细节：
Configuration Manager supports an in-place upgrade of the operating
system of the site server in the following situations:
- In-place upgrade to a higher Windows Server service pack as long as the resulting service pack level remains supported by Configuration
Manager.- In-place upgrade from Windows Server 2012 to Windows Server 2012 R2.
Configuration Manager does not support the following Windows Server
upgrade scenarios.
- Any version of Windows Server 2008 to any version of Windows Server 2008 R2 or later.
- Any version of Windows Server 2008 to any version of Windows Server 2012 or later.
- Any version of Windows Server 2008 R2 to any version of Windows Server 2012 or later.
资料来源：http://technet.microsoft.com/en-us/library/gg682077.aspx
附加信息：
有些用户可能会发现此链接也特别有用：
Upgrade Sequencing for System Center 2012 R2
