I have a virtual machine that I have migrated from Virtual Server 2005 R2 over to Hyper V R2 server but I am unable to remove the virtual machine additions. When I try to remove them I get the following error:
"(\Tahoma8)You can install Virtual Machine Additions only on a valid virtual machine that is running a supported guest operating system"
followed by a
Fatal Error
How do I remove these virtual machine additions from the VM while it is running under Hyper V?
Best Answer
Unfortunately this is a known issue with Virtual Server virtual machines. There is a bug that stops the virtual machine additions from being uninstalled when the virtual machine is migrated to another platfom.
That said - this bug was fixed in Virtual Server 2005 R2 SP1.
The painful part is that to fix this you will need to:
You can get the installer for Virtual Server 2005 R2 SP1 from here: http://www.microsoft.com/downloads/en/details.aspx?familyid=bc49c7c8-4840-4e67-8dc4-1e6e218acce4
This acts as both an upgrade and a stand-alone installer (so if you need to setup a new server to do this - you do not need to install Virtual Server 2005 R2 before installing Virtual Server 2005 R2 SP1).
Cheers, Ben