Year: 2014

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What’s new in Hyper-V Generation – 2 VMs?

Microsoft launched Generation 2 VMs with Windows Server 2012 R2 but they are still compatible with Generation 1 VMs which likely called as ‘legacy VMs’. Generation 1 VMs are the normal VMs running on Hyper –V which uses BIOS-based boot architecture, whereas Generation 2 VMs use UEFI-boot based architecture and available only on Windows Server 2012 R2.

Generation 2 VMs provide a simple hardware model, supports UEFI firmware & many of the legacy devices have also removed. In Generation 1 VMs same virtual hardware was assigned, whereas Generation 2 will be having new functionalities which are:

  • PXE boot via standard network adapter:
    In generation 1 if there was a requirement to have remote installation for the guest operating system using PXE (Pre-boot execution Environment), the legacy network adapter was supposed to install. In generation 2 legacy network aren’t available so PXE boot can only be performed by the standard network adapter.
  • Boot from SCSI Virtual Hard Disk or DVD:
    In Generation 2, VMs are enabled to boot from virtual SCSI (Small Computer System Interface) controller. Virtual IDE (Integrated Device Electronics) controllers aren’t available in Generation 2 VMs. So, attached OS VHDX can be benefited by having SCSI or VHDX features.
  • Secure Boot is enabled by default:
    Generation 2 VMs have Secure Boot by default in nature which help in preventing unauthorised firmware, operating systems and UEFI (Unified Extensible Firmware Interface) drivers from running at the boot time. But Secure Boot can be disabled after creating the Virtual Machine.

The minimum requirements for the Generation 2 VMs are: Windows Server 2012 or R2 and 64 bit Windows 8 & 8.1.

On Microsoft Hyper-V an Admin can run both generations of VMs even though now Hyper-V will ask first which generation you want to create. Basically Hyper-V Generation 2 doesn’t support all Hyper-V supported guest Operating Systems. So, the Operating System, which isn’t compatible to Generation 2 those need to be installed on Generation 1 VMs.

When it comes to performance VMs boot will be 20% (approx.) faster & OS installation will be around 50% faster in comparison to Generation 1 VMs. But there will be not much difference in overall performance for VMs. 

Benefits:
There are benefits that Generation 2 VMs provide such as these VMs performs faster OS installation because OS installation enables from PXE network. Another advantage is, these VMs boots faster and a subset of Integration components is available to the VM during power-on.

Limitations:

Limitations are also there with Generation 2 VMs as they only support VHDX virtual hard-drive format. Generation 1 VMs can convert to a VHDX format to use in the Generation 2 but then you cannot further convert it to some other format. All OSs aren’t supported by Generation 2 VMs, you can’t install old version of OSs in them. There are a lot more drawbacks and limitations associated with Generation 2 VMs

  • Only new OSs are supported on Gen 2 VMs. 
  • No boot from an iSCSI LUN if you need to then use Gen 1 VMs only. 
  • The secure boot option is only with Gen 2 VMs. 
  • No support for the legacy network Adapters. 
  • No support for vFloppyDrives. 
  • No support for IDE Controllers
May be in the next release of Hyper-V we might not see these limitations or drawbacks in the Gen 2 VMs
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Use Mobogenie SDK to get profitable share & increased downloads

India has seen an endless development in the scene of developers on portable stage. With the diagram of cell phone clients climbing regular, there is additionally an ascent in the developers for these stages. One such illustration is Android and the tremendous designer group around it in India.
Despite the fact that we do have a ton of developers in India dealing with Android stage, very little of them has seen a business accomplishment with their work as of recently. Versatile application commercial center and biological community Mobogenie is all prepared to change the current state of adaptation and syndication held by Google Play Store. Mobogenie has presented another open stage for developers. Utilizing this stage, developers can now straightforwardly submit their applications to Mobogenie and even screen exercises and adaptation reports.


To utilize this administration, developers must sign up on the stage. In the wake of enrolling, they can submit their applications for survey and malware look out for Mobogenie application commercial center. Developers must incorporate Mobogenie SDK to have the application on the Mobogenie application commercial center. The better piece of this activity is, the benefit offering degree. While Google keeps up a 3:7 model for income offering on Play Store, Mobogenie is giving a premium 2:8 models to the same, to ensure better benefits for developers. Alongside that, Mobogenie is additionally offering 10,000 ensured download to timely riser registrants.

With in excess of 440 million clients, Mobogenie can’t be overlooked as an approaching application biological system on Android. By giving less demanding techniques, checking devices and a premium income offering model, they are most likely not going to go unnoticed among the huge Android developers group. Learner developers are the ones who will benefit most from this administration, exceptionally school understudies.
Mobogenie Developers Portal: http://developer.mobogenie.com/