Upgrading Proxmox VE 8 to 9: A Practical Guide
This guide documents the process of upgrading a standalone Proxmox VE 8 node to Proxmox VE 9, including every issue encountered along the way and how to resolve them. If you’re running a homelab setup on a no-subscription licence, this should map closely to your experience. Step 1: Run the Pre-Upgrade Checker Proxmox ships a built-in checker that validates your system before the upgrade. Always start here: pve8to9 Work through any FAIL or WARN items one at a time, re-running the checker after each fix until you get a clean result. ...