Opensource on

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.

Add custom boot logo (plymouth) to Fedora Silverblue

christoph.stoettner@stoeps.de (Christoph Stoettner) — Fri, 26 Sep 2025 16:00:00 +0200

I build a custom image for my notebooks based on Fedora Silverblue. About the why and how I spoke at several conferences. The last talk was: Gulasch Programmiernacht 2025. To build the image I use BlueBuild.

My Immutable Desktop Workflow with Fedora Silverblue and Distrobox

christoph.stoettner@stoeps.de (Christoph Stoettner) — Thu, 03 Apr 2025 22:30:00 +0200

In late 2023, I started exploring immutable operating systems, specifically Fedora Silverblue and Bluefin. If you’re curious about why I made this switch and want more technical details, check out my Froscon Talk on ‘Next-Gen Desktops’ or watch the video presentation below.

Matrix Channel

christoph.stoettner@stoeps.de (Christoph Stoettner) — Sat, 03 Sep 2022 18:00:00 +0200

The last months I played around with Matrix, a secure and open collaboration system. The protocol looks very promising, it allows hosting your own server and federate it to other systems. So like SMTP, all these matrix users can communicate to each other.

Install All Packages After Restore on RPM-based Linux

christoph.stoettner@stoeps.de (Christoph Stoettner) — Sat, 22 Dec 2018 09:35:46 +0100

In the last days I had a problem with a crashed virtual disk on a WebSphere Application Server. The backup team was able to recover all the data, but the operating system needs to be reinstalled. The operating system was Red Hat Linux, so rpm-based. One of the first tasks after recovery was to identify and reinstall missing packages.