Sometimes is happens that there is no way to select the language at the beginning of the Windows Server 2008 Hyper-V installation.br/>
use the Core Configurator 2.0 tool ( run this from another Windows Server 2008 machine ) to configure the chinese Hyper-V installation.
The GUI of this utility is in english.br/>
download the configuration tool from here:
http://coreconfig.codeplex.com/releases/view/36678br/>