This recipe will guide you through the steps required to check if your current VMM 2008 R2 SP1 installation meets the requirements for an upgrade to VMM 2012. The recipe will also help you with the initial steps that need to be carried out in order to prepare the environment for a VMM 2012 in-place upgrade.
First, you need to know that upgrading from the Beta versions and versions prior to VMM 2008 R2 SP1 is not supported.
Confirm that your system meets the requirements. See the Supported OS and Servers section of the Specifying the correct system requirements for a real-world scenario recipe in Chapter 1, VMM 2012 Architecture.
A direct upgrade from VMM 2008 R2 SP1 ...