The Vormox blog
Guides, deep dives and product news on automating Proxmox VE at scale.
Diagnosing GPU Passthrough Failures on Proxmox VE 9.x: IOMMU Groups, VFIO Binding, and Reset Quirks
GPU passthrough breaks in a handful of predictable ways: driver race conditions at boot, messy IOMMU groups, GPUs that won't reset cleanly, and firmware unity-map restrictions on newer hardware. Here's how to diagnose and fix each one on Proxmox VE 9.x.
How to Enable the QEMU Guest Agent in Proxmox VE (And Why You Should)
A blank IP field and a VM that won't shut down cleanly both trace back to one missing service. Here's how to enable the QEMU Guest Agent in Proxmox VE, step by step, on Linux and Windows guests.
Proxmox VE VXLAN Overlays: Building Multi-Node SDN Networks That Actually Work
A practical walkthrough of building multi-node VXLAN overlays with Proxmox VE SDN, covering MTU pitfalls, peer list mistakes, firewall gotchas, and the exact commands to diagnose a tunnel that looks applied but drops traffic.
Enabling SR-IOV for Network Interface Cards in Proxmox VE 9: A Complete Configuration Guide
A practical, end-to-end guide to enabling SR-IOV on Proxmox VE 9: BIOS and IOMMU prerequisites, creating and persisting Virtual Functions, and assigning them to VMs for near-native network performance.
How to Enable and Install the QEMU Guest Agent in Proxmox VE
Learn what the QEMU Guest Agent is, why Proxmox VE needs it, and how to enable and install it step by step on Linux and Windows virtual machines.
How to Configure a Static IP Address on Your Proxmox VE Host
Learn why a Proxmox VE host needs a fixed IP address, then follow a step-by-step guide to setting one up safely through the web interface or the network configuration file.
Diagnosing and Fixing Flapping Ceph OSDs in a Proxmox VE Hyper-Converged Cluster
A field-tested workflow for diagnosing flapping and down Ceph OSDs on Proxmox VE 9.2 clusters: network, disk, memory, and clock-skew root causes, with exact pveceph and ceph CLI commands to stabilize and fix the cluster.
How to Create an LXC Container in Proxmox VE (Step-by-Step Guide)
Learn what an LXC container is, how it differs from a virtual machine, and how to create your first Linux container in Proxmox VE using both the web interface and the command line.
Troubleshooting Corosync Cluster Communication Failures in Proxmox VE
A practical field guide to diagnosing and fixing corosync communication failures in Proxmox VE clusters, covering symptoms, root causes, diagnostic commands, redundant link configuration, and best practices to prevent HA fencing incidents.