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Server 2008 Hyper-V Client (Guest OS's) Deployment & Troubleshooting

So, you install Server 2008 and the Hyper-V role, but things are not going so smoothly.... right?

Guru Guy is here to help with common errors, problems and workarounds to get you IT Administrators up and running in no time!


Hyper-V Guest shows in Device Manager the "VM BUS" Device with exclaimation marks (Ie. Device error, not installed, could not be started).

For VMBus and other components necessary for synthetic device support in Hyper-V to load correctly, the HAL running in the virtual machine must be an APIC HAL.

The easiest way to change this setting is through the “msconfig.exe” tool on your Windows Vista / Server 2008 Hyper-V Guest. If you select the boot tab and then hit advanced, you’ll notice a checkbox marked “Detect HAL”.  After selecting this checkbox and hitting OK, you must reboot the virtual machine.

If the problem still persists, or is already set to ACPI x86, it is because the Hyper-V Patch has not been installed in the guest operating system (Windows Vista/Server 2008), KB949219.
http://support.microsoft.com/kb/949219

Problem is, to Install this Patch into the Virtual Machine with no Networking abilities (so no Internet connection)! Solution:
Save the file as an ISO and MOUNT it in the Virtual Machine Guest as a CD-ROM Drive. (This is done in the Hyper-V Manager). For those who don't know how to make an ISO file out of the MSU Patch, Guru Guy has made an x86 ISO download as a pre-packaged CDROM image ready to mount!

Manage Hyper-V from a remote computer (Windows Vista SP1):
Installed Hyper-V MMC in Windows Vista SP1Hyper V is now available as an MMC Snap-in which will, once installed, appear in your Vista start menu and will enable remote management and configuration of Hyper-V on your Server Core 2008 or full Server 2008 installation.

The only pre-requisite is that if it is a Vista client you are using, you need to have Service Pack 1 installed.

Download the Microsoft MMC Snap-in for Hyper-V management here:

Vista x64 Edition | Vista x86 Edition

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