Tag Archives: Virtual Machine

How to Inspect and Edit virtual disks in Hyper-V

Windows Server 2012 R2

In this post I will look Inspecting and Editing virtual disks in Hyper-V. In a previous post I looked at creating a vm template to deploy virtual machines from. The template used a Dynamically expanding virtual hard disk, so although the virtual machines’s operating system would see it as 127GB it’s actual size at deployment was 18GB, and it will grow as required up to its specified maximum size.

This is great for keeping storage usage down while testing or for templates storage, but in a production envrionment it is best practice to deploy fixed disks to increase disk throughput.

Continue reading

How to create a Hyper-V VM template without VMM

Windows Server 2012 R2

In this post I will look at creating a virtual machine (VM) template that you can use to quickly deploy new VM’s from, without having to install and patch them each time.

It is particularly useful if you are in a small Hyper-V environment and don’t have System Center Virtual Machine Manager (VMM).

The beauty of using a template for VM deployment is standardisation. You deploy a known configuration which can be pre-patched which reduces time during the post deployment tasks.

Continue reading

Windows update fails on Hyper-V 2012 R2 generation 2 virtual machines

Windows Server 2012 R2

If you have deployed a Windows Server 2012 R2 generation 2 virtual machine on 2012 R2 Hyper-V server you may find that Windows Update fails on any generation 2 virtual machines.

Generation 2 virtual machines use UEFI rather than BIOS. UEFI is a firmware interface to the hardware that will gradually replace BIOS on newer hardware. It is more secure than BIOS and designed to protect pre-boot prcesses from attack, improve startup times and support larger disks, as well as a number of other enhancements.

So a Generation 2 virtual machine uses UEFI, and therefore has the Enable Secure Boot option enabled by default.

Continue reading