LXD virtual machines: an overview | Ubuntu

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  • Post Updated: April 4, 2024

While LXD is mostly known for providing system containers, since the 4.0 LTS, it also natively supports virtual machines. With the recent 5.0 LTS, LXD virtual machines are at feature parity with containers. In this blog, we’ll explore some of the main LXD virtual machine features and how you can use them to run your infrastructure.

Why did we include VMs?

When talking about LXD, we often focus on system containers. After all, they are efficient, dense, and give the experience of a VM while being light on resources. However, since containers use the kernel of the host OS, they are not suitable when you would like to run your workloads in a different operating system, or with a different kernel than that of the host.

We have seen many of our users using LXD in parallel with something like libvirt, which gives some overhead as you’d have to deal with two different environments and configurations. With LXD VMs we unified that experience.

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