How To map VMWare vSphere/ESXi PMem devices from the Host to Guest VM

• Steve Scargall
• How to , Linux

In this post, we’ll use VMWare ESXi 7.0u3 to create a Guest VM running Ubuntu 21.10 with two Virtual Persistent Memory (vPMem) devices, then show how we can map the vPMem device in the host (ESXi) to “nmem” devices in the guest VM as shown by the ndctl utility.

If you’re new to using vPMem or need a refresher, start with the VMWare Persistent Memory documentation.

Table of Contents

• Create a Guest VM with vPMem Devices
• Install the Guest OS
• Install ndctl
• Mapping the NVDIMMs in the guest to devices in the ESXi Host
• Summary

Create a Guest VM with vPMem Devices

The procedure you use may be different from the one shown below if you use vSphere or an automated procedure.

How To Install a Mainline Linux Kernel in Ubuntu

• Steve Scargall
• How to

Note: This article was updated on Thursday, July 31st, 2025 and will work with newer Ubuntu releases.

By default, Ubuntu systems run with the Ubuntu kernels provided by the Ubuntu repositories. To get unmodified upstream kernels that have new features or to confirm that upstream has fixed a specific issue, we often need to install the mainline Kernel. The mainline kernel is the most recent version of the Linux kernel released by the Linux Kernel Organization. It undergoes several stages of development, including merge windows, release candidates, and final releases. Mainline kernels are designed to offer the latest features and improvements, making them attractive to developers and power users. Kernel.org lists the available Kernel versions.

Remote Development Using VS Code and SSH with AWS EC2

• Steve Scargall
• Development , Cloud computing

How to Perform Remote Code Development Using VS Code on a Remote AWS EC2 Instance via SSH

Remote development has become a crucial tool for developers, enabling the convenience of coding and deploying directly to remote environments. In this blog, I’ll walk you through the process of setting up Visual Studio Code (VS Code) to develop remotely on an AWS EC2 instance using SSH. By the end of this guide, you’ll be able to connect to your EC2 instance from VS Code and develop code as if you were working locally.