Last night I virtualized our SBS 2008 server and started it up on Server 2012. The problem I ran into is in system devices there are 2 entries for "Microsoft Hyper-V Virtual Machine Bus" and I believe one of them is supposed to be the Network Adaptor.
I have successfully VM'd 2 other servers on this 2012 Server so I know it can work (one of those is server 2008...just not SBS).
The only way I could get it to recognize the network adaptor is if I added a legacy adaptor. Then the SBS would add a "Intel 21140-Based PCI Fast Ethernet Adapter (Emulated)". This worked but the speed is extremely slow (obviously due to the legacy).
How can I add the non-legacy network adaptor and have it be recognized? I tried running MSCONFIG and selecting "Detect HAL" under the advanced boot options but that didn't work.
Any help is appreciated. Thanks.