Over the weekend, Mike Sterling (PM for the open source side of Hyper-V), tweeted that:
Since it has been a while, will make it worth it…Ubuntu 12.04 has Hyper-V drivers included by default for easy VM deployment.
Check the rest there
Consider the following scenario:
After applying the kernel update, the Linux based guest operating system fails to boot with “Unable to mount root file system”.
This problem occurs because the Linux Integration Services must be recompiled after a kernel upgrade to function.
To prevent this issue, enable Dynamic Kernel Module Support (DKMS) before applying kernel updates.
Check MS KB http://support.microsoft.com/default.aspx?scid=kb;en-us;2387594&sd=rss&spid=14134
A very interesting article in network world about Microsoft and Open Source.
Everyone in the Linux world remembers Microsoft CEO Steve Ballmer’s famous comment that Linux is a “cancer” that threatened Microsoft’s intellectual property.
Ballmer is still CEO of Microsoft, but that comment occurred in 2001, a lifetime ago in the technology market. While Microsoft hasn’t formally rescinded its declaration that Linux violates its patents, at least one Microsoft executive admits that the company’s earlier battle stance was a mistake. Microsoft wants the world to understand, whatever its issues with Linux, it no longer has any gripe toward open source.
We are really excited to announce the availability of the Hyper-V Linux Integration Services for Linux Version 2.1. This release marks yet another milestone in providing a comprehensive virtualization platform to our customers. Customers who have a heterogeneous operating system environment desire their virtualization platform to provide support for all operating systems that they have in their datacenters. We have supported Linux as a guest operating system on our virtualization platform from the days of Virtual Server and continue to enhance our support in that regard.
The following features are included in the 2.1 release:
Driver support for synthetic devices: Linux Integration Services supports the synthetic network controller and the synthetic storage controller that were developed specifically for Hyper-V.
Fastpath Boot Support for Hyper-V: Boot devices take advantage of the block Virtualization Service Client (VSC) to provide enhanced performance.
Timesync: The clock inside the virtual machine will remain synchronized with the clock on the host.
Integrated Shutdown: Virtual machines running Linux can be gracefully shut down from either Hyper-V Manager or System Center Virtual Machine Manager.
Symmetric Multi-Processing (SMP) Support: Supported Linux distributions can use up to 4 virtual processors (VP) per virtual machine.
Heartbeat: Allows the host to detect whether the guest is running and responsive.
Pluggable Time Source: A pluggable clock source module is included to provide a more accurate time source to the guest.
This version of the integration services for Hyper-V supports Novell SUSE Linux Enterprise Server 10 SP3, SUSE Linux Enterprise Server 11, and Red Hat Enterprise Linux 5.2 / 5.3 / 5.4 / 5.5.
Customers can obtain the Linux IC’s via the Microsoft Download Center at this link: http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=eee39325-898b-4522-9b4c-f4b5b9b64551
Microsoft announces the availability of the RC release of the Linux Integration Services v2.1. This new version includes new functionality, including timesync, integrated shutdown, and SMP support.
When installed on a virtual machine that is running a supported Linux operating system, the Linux Integration Services for Hyper-V provide the following functionality:
This version of the integration services for Hyper-V can be downloaded from here, and supports Novell SUSE Linux Enterprise Server 10 SP3, SUSE Linux Enterprise Server 11, and Red Hat Enterprise Linux 5.2 / 5.3 / 5.4 / 5.5.
Last July, Microsoft announced the drivers for Linux source code is available in the Hyper-V virtualization environment. In practice, the 2.6.32 of the Linux kernel version now contains drivers for synthetic Hyper-V, virtual machine including the VMBus, storage, and network components. In detail, it’s hv_vmbus, hv_storvsc, hv_blkvsc and hv_netvsc modules: these modules are described in this article.
Out configurations “officially supported”, I tested the activation of these modules in new Ubuntu Server 10.4, provided recently with the 2.6.32 kernel. To do this I found this article which explains how to enable these modules, and which I inspire me thus far.
Enabling modules
Firstly it must ensure that the Hyper-V modules are loaded at startup. To do this, edit the file / etc / initramfs-tools / modules and add the following four lines:
hv_vmbus
hv_storvsc
hv_blkvsc
hv_netvsc
Then, update the initramfs image:
$ sudo update-initramfs – u
Finally, configure the network by changing the/etc/network/interfaces file to configure the network interface named seth0. Indeed, a synthetic NIC would be named seth n instead of eth n for “legacy” network adapter.
For example for a DHCP configuration, add the following to / etc / network / interfaces:
Auto seth0
iface seth0 inet dhcp
or, for a static IP address:
Auto seth0
iface seth0 inet static
address ip_address
netmask mask
Gateway adresse_passerelle
It remains only to restart, and check the proper loading of drivers using the command:
$ Lsmod | grep hv_
Test procedure
For my test I used Windows Server 2008 R2 Hyper-V, and 32-bit Ubuntu Server 10.4 (ubuntu-10. 04 – server – i386 .iso).
Because I set up the VM with a synthetic network adapter, it is not detected the installation. This is not serious; it will be when it has made steps outlined previously after installation.
On this error message, choose <Continue>.
Once the virtual machine installed and started, the steps outlined above are fairly simple to implement:
After a reboot (sudo reboot), we have many assets on the network map seth0 synthetic, and other drivers loaded:
That is what servers run Linux under Hyper-V with decent performance. Have to wait for integration into the Linux kernel the next features (multi-processors, clock synchronization and stop integrated), these features are currently available in the beta integration services 2.1, SUSE Linux Enterprise Server Red Hat Enterprise Linux.
Microsoft announces the availability of the beta release of the Linux Integration Services v2.1. This new version includes new functionality, including timesync, integrated shutdown, and SMP support.
When installed on a virtual machine that is running a supported Linux operating system, the Linux Integration Services for Hyper-V provide the following functionality:
It is officially supported for the following versions of Linux:
This release is currently available on Connect (http://connect.microsoft.com) under the “Linux Integration Services for Microsoft Hyper-V” connection (which you can go and sign up for right now).
This is a beta release. To use the previously released version, download them from this link.
When installed in a supported Linux virtual machine running on Hyper-V, the Linux Integration Components provide.
Driver support for synthetic devices: The Linux integration components include support for both the synthetic network controller and synthetic storage controller that have been developed specifically for Hyper-V. These components take advantage of the new high-speed bus, VMBus, which was developed for Hyper-V.
Fastpath Boot Support: Boot devices now take advantage of the storage VSC to provide enhanced performance.
Supported Host Operating Systems
This version of the Linux Integration Components supports the following versions of Hyper-V:
- Windows Server® 2008 Standard, Windows Server® 2008 Enterprise, and Windows Server® 2008 Datacenter (64-bit versions only)
- Microsoft® Hyper-V Server 2008
- Windows Server 2008 R2 Hyper-V RTM (Build 7600) Standard, Enterprise, and Datacenter
-Microsoft Hyper-V Server 2008 R2 RTM (Build 7600)
Supported Guest Operating Systems
This version of the Linux Integration Components supports the following guest operating systems and virtual CPU (vCPU) configurations:
-SUSE Linux Enterprise Server 10 SP2 x86 and x64 (1 vCPU)
-SUSE Linux Enterprise Server 11 x86 and x64 (1 vCPU)
-Red Hat Enterprise Linux 5.2, 5.3, and 5.4 x86 and x64 (1 vCPU)
To download Linux Integration component version 2, please click this link:-
http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=c299d675-bb9f-41cf-b5eb-74d0595ccc5c#filelist
Network World – In an historic move, Microsoft on Monday submitted driver source code for inclusion in the Linux kernel under a GPLv2 license.The code consists of four drivers that are part of a technology called Linux Device Driver for Virtualization. The drivers, once added to the Linux kernel, will provide the hooks for any distribution of Linux to run on Windows Server 2008 and its Hyper-V hypervisor technology. Microsoft will provide ongoing maintenance of the code.
Linux backers hailed the submission as validation of the Linux development model and the Linux GPLv2 licensing.
Virtualization, cloud underlie Microsoft’s Linux kernel submissionMicrosoft’s Linux kernel submission raises virtualization questions
Microsoft said the move will foster more open source on Windows and help the vendor offer a consistent set of virtualization, management and administrative tools to support mixed virtualized infrastructure.
“Obviously we are tickled about it,” said Jim Zemlin, executive director of the Linux Foundation. “Hell has frozen over, the seas have parted,” he said with a chuckle.
Microsoft made the announcement at the annual OSCON open source conference that opened Monday in San Jose.Greg Kroah-Hartman, the Linux driver project lead and a Novell fellow, said he accepted 22,000 lines of Microsoft’s code at 9 a.m. PT Monday. Kroah-Hartman said the Microsoft code will be available as part of the next Linux public tree release in the next 24 hours. The code will become part of the 2.6.30.1 stable release.
“Then the whole world will be able to look at the code,” he said.
The stable release is an interim build between each main release, which come in three-month cycles. The first main kernel release to include the open source driver technology will come in December as part of the 2.6.32 release, Kroah-Hartman said.The drivers will initially be part of the Linux kernel’s staging tree, a place where code is stored and polished before it is moved into the main tree. The code of every first-time kernel submitter begins life in the staging tree.
Kroah-Hartman said Microsoft’s submission was routine. “They abided by every single rule and letter of what we require to submit code. If I was to refuse this code it would be wrong,” he said.
Sam Ramji, who runs the Open Source Software Lab for Microsoft and is the company’s director of open source technology strategy, called the Linux kernel submission the company’s most important Linux/open source commitment ever.
“It is a significant piece of technology. It is a strategic technology and it is under the GPLv2 license that the Linux kernel uses, and which the community is organized around.”
