Category: PowerShell

PowerShell 7 Installer

How to Install and Update PowerShell 7

Currently, you can install the cross-platform version PowerShell Core 6 on Linux, macOS, and Windows. Early April the PowerShell team announced the next release called PowerShell 7. PowerShell 7 is built on .NET Core 3 and brings back many APIs required by modules built on .NET Framework so that they work with .NET Core runtime. While PowerShell Core 6 was focusing on bringing cross-platform compatibility, PowerShell 7 will focus on making it a viable replacement for Windows PowerShell 5.1 and bringing near parity with Windows PowerShell. Here is how you can install and update PowerShell 7 (preview) on Windows and Linux using a simple one-liner.

If you want to know more about the roadmap, check out Steves blog post.

One great example of how cross-platform PowerShell can work, check out my blog post: How to set up PowerShell SSH Remoting.

Install PowerShell 7 (Preview)

As mentioned PowerShell 7 is currently in preview. You can download and install it manually from GitHub. However, the easiest way to install it is to use the following one-liners created by Steve Lee (Microsoft Principal Software Engineer Manager in the PowerShell Team). You can also use the same one-liners with different parameters to install the current GA version of PowerShell 6.

If you are installing the PowerShell 7 Preview, this will be a side by side installation with PowerShell 6. You can use the pwsh-preview command to run version 7.

One-liner to install or update PowerShell 7 on Windows 10

Install and Update PowerShell 7

You can use this single command in Windows PowerShell to install PowerShell 7. The difference between the installation of version 6 versus version 7 is the -Preview flag.

iex "& { $(irm https://aka.ms/install-powershell.ps1) } -UseMSI -Preview"

There are additional switches to, for example, install daily builds of the latest PowerShell previews.

-Destination
The destination path to install PowerShell Core to.

-Daily
Install PowerShell Core from the daily build.
Note that the ‘PackageManagement’ module is required to install a daily package.

-Preview
Install the latest preview, which is currently version 7. This will

-UseMSI
Use the MSI installer.

-Quiet
The quiet command for the MSI installer.

-DoNotOverwrite
Do not overwrite the destination folder if it already exists.

-AddToPath
On Windows, add the absolute destination path to the ‘User’ scope environment variable ‘Path’;
On Linux, make the symlink ‘/usr/bin/pwsh’ points to “$Destination/pwsh”;
On MacOS, make the symlink ‘/usr/local/bin/pwsh’ points to “$Destination/pwsh”.

One-liner to install or update PowerShell 7 on Linux

Install PowerShell 7 on Linux

You can use this as a single command to install PowerShell 7 on Linux

wget https://aka.ms/install-powershell.sh; sudo bash install-powershell.sh -preview; rm install-powershell.sh

Depending on your distro you are using, this will register Microsoft’s pkg repos and install that package (deb or rpm).

You can also use the following switches:

-includeide
Installs VSCode and VSCode PowerShell extension (only relevant to machines with a desktop environment)

-interactivetesting
Do a quick launch test of VSCode (only applicable when used with -includeide)

-skip-sudo-check
Use sudo without verifying its availability (hard to accurately do on some distros)

-preview
Installs the latest preview release of PowerShell side-by-side with any existing production releases

To currently run the PowerShell Preview, you can run the following command:

pwsh-preview

After Installing

After you have installed PowerShell 7, also make sure to update PowerShellGet and the PackageManagement module.

Remember PowerShell 7 is still currently in preview, if you have any questions, please let me know in the comments.



PowerShell Get-WindowsImage Windows Server 2019 Editions

Add Drivers to a Windows Server 2019 ISO Image

In this blog article, I am going to show you how you can add drivers to a Windows Server 2019 ISO Image or WIM file using PowerShell and the DISM module. This will allow you to already have the latest drivers within the Windows Server installation image when you install Windows Server 2019. We will add drivers to a Windows Server 2019 WIM file (WIM stands for Windows Imaging Format), which then can be used to create a new ISO image or for example in Windows Deployment Services.

Preparation

Folder for adding drivers to Windows Server 2019

Folder for adding drivers to Windows Server 2019

First, you will need to create three new folders called Drivers, ISO, and Mount. In my example, I created these in C:\Images.

  • Drivers – This is the folder where you put all your extracted drivers, which you want to add to your Windows Server 2019 Image.
  • ISO – This is where you can extract the Windows Server 2019 ISO Image. Basically all the files on the ISO file.
  • Mount – This is an empty folder, which will be used to mount the WIM files.

You can now mount the ISO using Windows Explorer or the following PowerShell commands and copy the files to the ISO folder.

Mount ISO PowerShell

Mount ISO PowerShell

Mount-DiskImage -ImagePath C:\Temp\17763.379.190312-0539.rs5_release_svc_refresh_SERVER_EVAL_x64FRE_en-us.iso
Copy-Item D:\* C:\Image\ISO\ -Recurse

In your case, the ISO may be mounted on a different drive letter instead of my D: drive.

Add drivers to the Windows Server 2019 Image

First, you can check in which Windows editions you want to add the drivers. To check that you can use the following PowerShell command:

Get-WindowsImage -ImagePath C:\Image\ISO\sources\install.wim
PowerShell Get-WindowsImage Windows Server 2019 Editions

PowerShell Get-WindowsImage Windows Server 2019 Editions

The Get-WindowsImage cmdlet will show you the different editions included in the WIM file.

After we have seen the Index numbers, we can now mount the Windows Image our Mount folder. In my example, I use Image Index 3, which is the Windows Server 2019 Datacenter Core Edition. If you want to check which editions of Windows Server 2019 you should use, check out the Microsoft Docs.

Mount-WindowsImage -Path C:\Image\Mount -ImagePath C:\Image\ISO\sources\install.wim -Index 3
Mount-WindowsImage

Mount-WindowsImage

After the image is mounted you can now add the drivers to the Windows Server 2019 Image using the following command:

Add-WindowsDriver -Path C:\Image\Mount -Driver C:\Image\Drivers -Recurse
Add Drivers to Windows Server 2019 ISO Image

Add Drivers to Windows Server 2019 ISO Image

After you have added all the drivers to the image, you need to dismount the image and save it.

Dismount-WindowsImage -Path C:\Image\Mount -Save

We have now added the drivers to the Install image, and you should also add the drivers to your boot image if it is, for example, a network or storage controller driver you might need to install the server. To do this do the same steps to the C:\Image\ISO\sources\boot.wim.

Now you can use these WIM files with Windows Deployment services or create a USB drive to install Windows Server 2019. If you want to create an ISO file, you can use the oscdimg command-line tool. The oscdimg tool comes with the Windows Assessment and Deployment Kit (Windows ADK), which you can get here.

oscdimg -n -m -bc:\temp\ISO\boot\etfsboot.com C:\temp\ISO C:\temp\mynew.iso

I hope this post helps you to add drivers to your Windows Server image. If you have any questions, feel free to leave a comment.



Copy files to Azure VM using PowerShell Remoting

Copy Files to Azure VM using PowerShell Remoting

There are a couple of different cases you want to copy files to Azure virtual machines. To copy files to Azure VM, you can use PowerShell Remoting. This works with Windows and Linux virtual machines using Windows PowerShell 5.1 (Windows only) or PowerShell 6 (Windows and Linux). Check out my blog post at the ITOpsTalk.com about copying files from Windows to Linux using PowerShell Remoting.

Prepare your client machine

Prepare the client machine to create PowerShell Remote connections to a specific remote VM.

Set-Item WSMan:localhost\client\trustedhosts -value "AZUREVMIP"

You can also enable remoting to all machines by using an asterisk.

Set-Item WSMan:localhost\client\trustedhosts -value *

Copy Files to Windows Server Azure VM

If you want to copy files to an Azure VM running Windows Server, you have two options. If you are copying files from Windows to Windows, you can use Windows PowerShell Remoting; if you are copying files from Linux or macOS to Windows, you can use the cross-platform PowerShell 6 and PowerShell Remoting over SSH.

Using Windows PowerShell Remoting

To copy files from a Windows machine to a Windows Server running in Azure, you can use Windows PowerShell Remoting.

Prepare the host (Azure VM) to receive Windows PowerShell remote commands. The Enable-PSRemoting cmdlet configures the computer to receive Windows PowerShell remote commands that are sent by using the WS-Management technology.

Enable-PSRemoting -Force

Now you can create a new PowerShell Remoting session to the Azure VM.

$cred = Get-Credential
 
$s = New-PSSession -ComputerName "AZUREVMIPORNAME" -Credential $cred

After the session was successfully created, you can use the copy-item cmdlet with the -toSession parameter.

Copy-Item .\windows.txt C:\ -ToSession $s

Some important notes

  • You need to configure the Network Security Group for the Azure VM to allow port 5985 (HTTP) or 5986 (HTTPS)
  • You can use PowerShell Remoting over Public Internet or Private connectivity (VPN or Express Route). If you are using the Public Internet, I highly recommend that you use https. I also recommend that you use Just-in-time virtual machine access in Azure Security for public exposed ports.

Using PowerShell Core 6 PowerShell Remoting over SSH

If you are running PowerShell Core 6, you can use PowerShell Remoting over SSH. This gives you a simple connection and cross-platform support. First, you will need to install PowerShell 6. After that, you will need to configure and setup PowerShell SSH Remoting together with OpenSSH. You can follow my blog post to do this here: Setup PowerShell SSH Remoting in PowerShell 6

Now you can create a new PowerShell Remoting session to the Azure VM.

$s = New-PSSession -HostName "AZUREVMIPORNAME" -UserName

After the session was successfully created, you can use the copy-item cmdlet with the -toSession parameter.

Copy-Item .\windows.txt C:\ -ToSession $s

Some important notes

  • You need to configure the Network Security Group for the Azure VM to allow port 22 (SSH)
  • You can use PowerShell Remoting over Public Internet or Private connectivity (VPN or Express Route). Exposing the SSH port to the public internet maybe is not secure. If you still need to use a public SSH connection, I recommend that you use Just-in-time virtual machine access in Azure Security.

Copy Files to Linux Azure VM

Copy File Windows to Linux using PowerShell Remoting

If you want to copy files to a Linux VM running in Azure, you can make use of the cross-platform PowerShell capabilities of PowerShell 6, using PowerShell Remoting over SSH. As for the Windows virtual machines, you will need to install PowerShell 6. Next, you will need to configure and setup PowerShell SSH Remoting together with OpenSSH. You can follow my blog post to do this here: Setup PowerShell SSH Remoting in PowerShell 6

After installing and configuring PowerShell Remoting over SSH, you can create a new PowerShell Remoting session to the Azure VM.

$s = New-PSSession -HostName "AZUREVMIPORNAME" -UserName

After you successfully connected to your Azure VM, you can use the copy-item cmdlet with the -toSession parameter.

Copy-Item .\windows.txt /home/thomas -ToSession $s

I hope this gives you an overview about how you can copy files to Azure VMs using PowerShell Remoting. If you have any questions, let me know in the comments.



Ubuntu VM on Windows 10

How to create an Ubuntu VM on Windows 10

Windows 10 is not just a modern desktop operating system, and it also has some great IT Pro and Developer related features build in. One of them is client Hyper-V. This is the same hypervisor which powers virtualization in Windows Server and the Microsoft Azure datacenters. With Hyper-V, you can create virtual machines running on Windows 10, without the need for third-party software. You can not just run Windows virtual machines, and you can also run Linux virtual machines. In this blog post, I am going to show you how you can create an Ubuntu VM on Windows 10 using Hyper-V.

If you want to know more about Hyper-V on Windows 10, check out the Microsoft Docs.

Install Hyper-V

First, you will need to install Hyper-V on your Windows 10 computer. Hyper-V on Windows 10 has the following requirements:

  • Windows 10 Enterprise, Professional, or Education (Home does not have the Hyper-V feature included)
  • 64-bit Processor with Second Level Address Translation (SLAT)
  • CPU support for VM Monitor Mode Extension (VT-c on Intel CPU’s)
  • Minimum of 4 GB memory

The easiest way to enable Hyper-V on Windows 10 is to run the following PowerShell command as an administrator:

Enable-WindowsOptionalFeature -Online -FeatureName:Microsoft-Hyper-V -All

After you have installed Hyper-V, you need to restart your computer.

Create an Ubuntu virtual machine on Windows 10

To create an Ubuntu virtual machine on Windows 10 Hyper-V, you could download the Ubuntu ISO file and install it like any operating system. However, there is a much easier way, using the Hyper-V Quick Create feature. In the Hyper-V VM Gallery, you will find not just two Windows 10 virtual machines; you will also currently find Ubuntu 18.04 LTS and Ubuntu 19.04. These are prepared Hyper-V virtual machines images, ready for you to download and install.

Ubuntu Hyper-V VM Images

Select the Ubuntu version you want to install and click on Create Virtual Machine. This will start downloading the virtual machine image.

Downloading Ubuntu Hyper-V VM Image

After the image is downloaded, you can either connect to the virtual machine and start it, or you can first modify the virtual machine settings.

Ubuntu 18.04 LTS Hyper-V VM

Optional: If you click on Edit settings, you will be able to configure the virtual machine hardware settings like vCPU or vRAM. You can also enable Secure Boot. If you enable Secure Boot for a Linux virtual machine, make sure you change the Secure Boot template to Microsoft UEFI Certificate Authority.

Ubuntu Hyper-V UEFI Secure Boot Settings

You can now start the Ubuntu VM.

Start Ubuntu hyper-V VM

 

This will boot you in the Ubuntu installation, where you can set up your Ubuntu operating system.

Install Ubuntu VM

All the specific Hyper-V drivers for Ubuntu, are already included in the image. This allows you to use features like Hyper-V Enhanced Session Mode, which enables you also to use copy-paste, and others.

Ubuntu VM on Windows 10

I hope this gives you a step-by-step guide, how you can create an Ubuntu VM on Windows 10 using Hyper-V. If you have any questions, please let me know in the comments.



Download the new Windows Terminal Preview

Install the new Windows Terminal (Preview)

At Microsoft Build 2019, the team announced a new Windows Terminal which will be open-source. There are a couple of improvements which are coming to the new Windows Terminal like; multiple tabs support, GPU accelerated DirectWrite/DirectX-based text rendering engine, advanced configuration settings, and much more. It allows you to run different shells like Windows PowerShell, PowerShell Core, Command Prompt, WSL, and also WSL 2. Today you can download the Windows Terminal Preview from the Microsoft Store. It is still a very early preview and the team, as well as the community, are still working on it. The team’s goal is to work with the community and launch version 1.0 end of 2019. Here is how you can install the new Windows Terminal.

Windows Terminal is a new, modern, fast, efficient, powerful, and productive terminal application for users of command-line tools and shells like Command Prompt, PowerShell, and WSL.

You can find more information about it here on the Microsoft announcement blog.

Download and Install the Windows Terminal

You were able to download the sources for the terminal from GitHub and build it yourself. However, the preview release in the Windows Store makes it much easier to try it out and stay more up to date.

Windows Terminal

Windows Terminal will be delivered via the Microsoft Store in Windows 10 and will be updated regularly, ensuring you are always up to date and able to enjoy the newest features and latest improvements with minimum effort.

Provide Feedback and get involved

Windows Terminal is a new, modern, feature-rich, productive terminal application for command-line users. It includes many of the features most frequently requested by the Windows command-line community including support for tabs, rich text, globalization, configurability, theming & styling, and more.

The Terminal will also need to meet our goals and measures to ensure it remains fast, and efficient, and doesn’t consume vast amounts of memory or power.

You can file bugs and share feedback with the community and us, as well as fix issues and make improvements on GitHub. If you come across any bugs or want to share feedback, you can do that on GitHub issues for detailed issues/discussions or with the Microsoft Store release in the Feedback Hub. You join the development on GitHub.

Try out the Windows Terminal today, and if you have any questions, please let me know in the comments.



Install WSL 2 on Windows 10

With the Windows 10 Insider Preview Build 18917, the team also ships the first version of the Windows Subsystem for Linux 2 (WSL 2), which was announced at the Microsoft Build 2019 conference. In this post, I am going to show you how you can install WSL 2 on your Windows 10 machine.

The Windows Subsystem for Linux (WSL 1) was in Windows 10 for a while now and allowed you to use different Linux distros directly from your Windows 10 machine. With WSL 2, the architecture will change drastically and will bring increased file system performance and full system call compatibility. WSL 2 is now using virtualization technology (based on Hyper-V) and uses a lightweight utility VM on a real Linux kernel. You can find out more about WSL 2 in the release blog or on the Microsoft Docs Page for WSL 2.

WSL 2 Architecture

Requirements

To install WSL 2, you will need the following requirements:

Install WSL 2

To install the Windows Subsystem for Linux 2 (WSL 2), you need to follow these tasks.

  • Enable the Windows Subsystem for Linux Optional feature (WSL 1 and WSL 2)
  • Install a distro for the Windows Subsystem for Linux
  • Enable the ‘Virtual Machine Platform’ optional feature (WSL 2)
  • Configure the distro to use WSL 2

Enable the Windows Subsystem for Linux

To run the WSL on Windows 10 you will need to install the optional feature:

Enable-WindowsOptionalFeature -Online -FeatureName Microsoft-Windows-Subsystem-Linux

Install a Linux distro for the Windows Subsystem for Linux

If you don’t already have installed a WSL distro, you can download and install it from the Windows 10 store. You can find more here: Crazy times – You can now run Linux on Windows 10 from the Windows Store

Enable the Virtual Machine Platform feature

WSL 2 Enable Virtual Machine Platform

WSL 2 Enable Virtual Machine Platform

To make use of the virtualization feature for WSL 2, you will need to enable the optional Windows feature. You can run the following PowerShell command to do this. You will need to start PowerShell as an Administrator. After you run this command, you might need a restart of your computer.

Enable-WindowsOptionalFeature -Online -FeatureName VirtualMachinePlatform

Set WSL distro to use version 2

After you completed the first two steps, you will need to configure the distro to use WSL 2. Run the following command to list the available distros in PowerShell:

wsl -l -v

To set a distro to WSL 2 you can run the following command:

wsl --set-version DistroName 2

You can also set WSL 2 as the default:

wsl --set-default-version 2

To find out more about installing WSL 2, check out the Microsoft Docs page.

If you are now running your distro using WSL 2, you can now see that there is a Virtual Machine worker process running and if you search a little bit more, you can also find the VHDX file of the distro.

WSL 2 VHDX file

I hope this helps you and gives you a quick overview, if you have any questions, let me know in the comments and check out the WSL 2 FAQ. The Windows Subsystem for Linux 2 Kernel is also open-source, you can follow the project on GitHub.



Azure Generation 2 Virtual machine

Generation 2 VM support on Azure – and why should I care?

A couple of days ago Microsoft announced the public preview of Generation 2 virtual machines on Azure. Generation 2 virtual machines support a bunch of new technologies like increased memory, Intel Software Guard Extensions (SGX), and virtual persistent memory (vPMEM), which are not supported on generation 1 VMs. But more on that later.

What are Hyper-V Virtual Machine Generations

Windows Server 2012 R2 Hyper-V introduced the concept of virtual machine generations. Not to be confused with Hyper-V configuration versions. The generation of a virtual machine defines the virtual hardware of a virtual machine and adds some additional and modern functionality. In Hyper-V, there are two virtual machine generations, generation 1 and generation 2. Generation 2 virtual machines support Unified Extensible Firmware Interface (UEFI) firmware instead of BIOS-based firmware. The Hyper-V team also removed a lot of the legacy devices and replaced them with a simplified virtual machine model.

On Windows Server Hyper-V Generation 2 VMs support features and improvements like

  • PXE boot by using a standard network adapter
  • Boot from a SCSI virtual hard disk
  • Boot from a SCSI virtual DVD
  • Secure Boot (enabled by default)
  • UEFI firmware support
  • OS disk > 2 TB
  • improved boot and installation times

However, an important note here, not all of these features are currently available on Azure Generation 2 virtual machines, and not all operating systems are supported in Generation 2 VMs. For example, in Windows7, Windows Server 2008 and Windows Server 2008 R2 and 32-bit Windows systems are not supported. You can find more information about Hyper-V Generation 2 VMs here.

Azure Generation 2 Virtual Machines Overview

Azure Generation 2 Virtual Machines are currently in public preview. To be honest, Generation 2 VMs in Azure aren’t that new, with the public preview of Azure Confidential Computing, we already used Generation 2 VMs. However, now we can start using it for other workloads as well. This means that you can now upload and use your local VHD (not VHDX) files based on Hyper-V Generation 2 virtual machines. Before you had to use Azure Site Recovery to replicate and convert your Hyper-V Generation 2 VMs to Azure Generation 1 VMs.

Azure Generation 1 vs. Generation 2 capabilities

Azure Generation 1 vs Generation 2 VM

Currently, Generation 2 VMs are in public preview, and that means next to not having a service level agreement (SLA), the features which are available can and are limited. If you look at features like ASR or Azure Backup, which are currently not supporting Generation 2 VMs.

CapabilityGeneration 1Generation 2
OS disk > 2 TB
Custom Disk/Image/Swap OS
Virtual machine scale set support
ASR/Backup
Shared Image Gallery
Azure Disk Encryption

You can find more information about Azure Generation 2 virtual machines with an updated list of capabilities on Microsoft Docs.

Hyper-V vs. Azure Generation 2 VMs

There are also differences between Hyper-V Generation 2 VMs and Azure Generation 2 VMs. Not all of the features provided in Hyper-V are currently present in the public preview version on Azure.

FeatureOn-prem Hyper-VAzure
Secure Boot
Shielded VM
vTPM
Virtualization-Based Security (VBS)
VHDX format

Again, you can find an up-to-date list on Microsoft Docs.

Getting started

You can get started using the Generation 2 VMs on the following VM Sizes on Azure Premium Storage and Ultra SSD:

Windows Server Azure Generation 2 Virtual Machine

In public preview, you can now also use the following Azure Marketplace images from the “windowsserver-gen2preview” offer.

  • Windows Server 2019 Datacenter (2019-datacenter-gen2)
  • Windows Server 2016 Datacenter (2016-datacenter-gen2)
  • Windows Server 2012 R2 Datacenter (2012-r2-datacenter-gen2)
  • Windows Server 2012 Datacenter (2012-datacenter-gen2)

Create a virtual machine

You can use the Azure Portal to create a new VM or the Azure CLI using the following commands:

 
az group create --name myGen2ResourceGroupVM --location eastus
az vm create \
--resource-group myGen2ResourceGroupVM \
--name myVM \
--image MicrosoftWindowsServer:windowsserver-gen2preview:2019-datacenter-gen2:latest \
--admin-username thomas \
--admin-password myPassword12

Conclusion

I hope this gives you an overview of the benefits and how you can run Generation 2 VMs on Azure. If you have any questions please let me know in the comments.