Windows server 2008 R2 cross-hardware platform upgrade 2012

With the changes of time, today's software has more hardware requirements. In the past, the server hardware that has been on the line has gradually become unsatisfactory, so it is necessary to fundamentally solve such bottlenecks —— replace the server hardware.
This is a question about what this process is all about. It is important to know how to do this thing. Let me talk about the environment here is as follows: First, the background description software: No. original system new system 1WIN2008R2WIN2012 Hardware: serial number of the original hardware platform new hardware platform 1 inter inter Requirements: to achieve the following role normal transfer to the new hardware platform serial number original FSMO role New FSMO role 1 architecture architecture 2 domain naming host domain naming host 3PDCPDC4RIDRID5 structure structure involves server: serial number server OS version domain role 1CSCODCWIN 2008R2CSCO.V original domain controller 2member1WIN 2008R2CSCO.V member server 3CSCODCWIN 2012CSCO.V new domain controller Other information: Use the original IP, the original domain name II, the execution process 2.1 Do the backup of the original domain controller 2.2 Expand the architecture 2.2.1. On this primary domain controller, run adprep /forestprep to extend the forest level to support Windows 20122.2.2. On this primary domain controller, run adprep /domainprep to extend the domain level to support Windows 2012 domain 2.2.3 On this primary domain controller, run adprep /rodcprep3. Install on new hardware platform Get ready for a brand new win20124. At this point, put 5 roles of the main domain and GC Domain can be transferred to another inside a computer to view the current role 4.1 4.2 Transport role to view the current role of a domain controller's host server, transfer the successful transfer of the global catalog (GC) 4.3 demote the original domain controller server, delete