Feeds

Hyper-V in Server 2008 RTM doesn't like non-US locales

Bad traveling companion

Secure remote control for conventional and virtual desktops

Hyper-V is Microsoft's whizzy new virtual server manager, which uses new virtualization features in recent Intel and AMD processors so support more efficient virtual machines. Intel's extensions are called Intel Virtualization Technology (Intel-VT), formerly code-named Vanderpool, while AMD's extensions are called AMD Virtualization (AMD-V), formerly code-named Pacifica. Here's what Intel says:

How does Intel Virtualization Technology eliminate the gaps in current virtualization solutions?

Three ways. First, the technology provides a new, higher privilege ring for the VMM [Virtual Machine Monitor]. This allows guest OSs and applications to run in the rings they were designed for, while ensuring the VMM has privileged control over platform resources. It eliminates many potential conflicts, simplifies VMM requirements, and improves compatibility with unmodified legacy OSs. Second, handoffs between the VMM and guest OSs are supported in hardware. This reduces the need for complex, compute-intensive software transitions. Third, processor state information is retained for the VMM and for each guest OS in dedicated address spaces. This helps to accelerate transitions and ensure the integrity of the process.

Hyper-V is a good reason to use Windows Server 2008 x64 (it is not supported on x86), but is it not done yet. Microsoft has shipped a beta of Hyper-V in the release build of Server 2008, and is promising a full release within 180 days from now. It is not something to use casually - Paul Thurrott quotes Microsoft's Bryon Surace as saying:

Conceptually, it jacks up the OS and slides in the Hypervisor underneath. So we clearly don't want that installed by default on servers that won't be running virtualization.

So don't even think about using it for real just yet. When it does get finished, Microsoft recommends using Server Core rather than the full Server 2008 as the host OS. However, Hyper-V is interesting to developers as well as admins, so I wanted to take a look. Unfortunately, after I added the Hyper-V role to the server, the Virtual Machine Management Service failed to start, presenting the gloriously obscure message:

The service changed to an unexpected state.

This problem has been mentioned by others. Apparently the fix is simple but extreme: re-install Server 2008 using the English (United States) locale. Can't you just change the locale in your existing installation? It didn't work for me, and Microsoft's Ben Armstrong said: "It is not sufficient to change the locale after OS installation."

Once Hyper-V is installed, you can change the locale to what you want and it will still work, though I don't know if this is supported.

Annoying. Yes, it is mentioned in the release notes - but what if Hyper-V beta had required you to set a non-US locale at install time? Do you think Microsoft would have flagged this problem more prominently?

This article originally appeared in ITWriting.

Copyright (c) 2007, ITWriting.com.

A freelance journalist since 1992, Tim Anderson specializes in programming and internet development topics. He has columns in Personal Computer World and IT Week, and also contributes regularly to The Register. He writes from time to time for other periodicals including Developer Network Journal Online, and Hardcopy.

Secure remote control for conventional and virtual desktops

More from The Register

next story
Ellison: Sparc M7 is Oracle's most important silicon EVER
'Acceleration engines' key to performance, security, Larry says
Oracle SHELLSHOCKER - data titan lists unpatchables
Database kingpin lists 32 products that can't be patched (yet) as GNU fixes second vuln
Ello? ello? ello?: Facebook challenger in DDoS KNOCKOUT
Gets back up again after half an hour though
Hey, what's a STORAGE company doing working on Internet-of-Cars?
Boo - it's not a terabyte car, it's just predictive maintenance and that
Troll hunter Rackspace turns Rotatable's bizarro patent to stone
News of the Weird: Screen-rotating technology declared unpatentable
prev story

Whitepapers

A strategic approach to identity relationship management
ForgeRock commissioned Forrester to evaluate companies’ IAM practices and requirements when it comes to customer-facing scenarios versus employee-facing ones.
Storage capacity and performance optimization at Mizuno USA
Mizuno USA turn to Tegile storage technology to solve both their SAN and backup issues.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Beginner's guide to SSL certificates
De-mystify the technology involved and give you the information you need to make the best decision when considering your online security options.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.