Convert qcow2 image of libvirt VM to thin provisioning

christoph.stoettner@stoeps.de (Christoph Stoettner) — Thu, 18 Dec 2025 18:00:00 +0200

During testing with Talos Kubernetes deployments on Libvirt, I encountered an issue where created virtual machines used fully provisioned disks, which consumed the complete configured disk size on the host system.

Create A Test Environment With Terraform And KVM

christoph.stoettner@stoeps.de (Christoph Stoettner) — Sat, 06 Nov 2021 10:30:00 +0200

I create a lot of virtual machines during the week to test deployments, or try to digg into problems of deployments. In the past I used Vmware Workstation, Oracle VirtualBox or MS HyperV on my desktops, but I also used Vmware ESX. I tried to use Vagrant and Packer to prepare images and distribute them, but wasn’t satisfied at all.

Kvm on

Convert qcow2 image of libvirt VM to thin provisioning

Create A Test Environment With Terraform And KVM