Update: 26th June 2008. Hyper-V RTM is now available. RC0 is pre-release software.
Hot off the press - we have just made Release Candidate 0 (RC0) for Hyper-V available on the Microsoft Download Centre (Center). (Be patient as if takes a little while to completely propagate.) There are a huge number of improvements in Hyper-V RC0 over Hyper-V Beta, far too many to enumerate. What you really want to know, though, is where to get it, and what to do with it once you have it. So without further ado....: If your physical machine is already running Windows Server 2008 RTM x64 Edition, the link below is what you need to update the parent partition. By all means – start your download now, but please don’t apply it to your system until you’ve read the rest of this post. Update for Windows Server 2008 x64 Edition (KB949219) http://www.microsoft.com/downloads/details.aspx?FamilyId=DDD94DDA-9D31-4E6D-88A0-1939DE3E9898
And while you’re downloading the above update, if you currently have virtual machines running Windows Server 2008 (x86) on Hyper-V beta, or plan have virtual machines running Windows Server 2008 (x86) on Hyper-V RC0,you’ll need this update too:
Update for Windows Server 2008 (KB949219) http://www.microsoft.com/downloads/details.aspx?FamilyId=B7464B44-821D-4A7C-9D9C-7D74EC14437C
Some of the things to look out for before applying the update to the parent partition if you have the Hyper-V Beta role enabled:
Ideally, I would recommend you apply the update to the parent partition before updating any virtual machines. However, if you’ve gone ahead and done it the other way around, it’s not big deal. I’m going to assume you start with the parent partition though.
Apply Windows6.0-KB949219-x64 on the parent partition. A reboot will be required.
Note this step applies whether you are using pre-existing VHDs from Hyper-V Beta, or are installing new virtual machines. You must have the Hyper-V RC0 components matching between the parent partition and the virtual machine. (If the component levels do not match, typical symptoms will be that you will not have mouse integration, synthetic networking and storage does not show up in virtual machines.)
a) If the virtual machine image is Windows Server 2008
b) If the virtual machine image is Windows Server 2003 SP2 (x86/x64), Windows Vista SP1 x86, Windows XP x86 SP3 (SP3 is currently in RC)
Finally, some further links for you. I strongly recommend you refer to these as well as my summary instructions above.
As always, please send your feedback my way. I’d love to hear how you get on. Cheers, John.