UEFI vs Legacy, BTRFS vs ext4, Laptop vs Workstation, USB stick vs DVD, KDE vs GNOME and 7000 packages on top. OpenSUSE is way too versatile for humans to test even the most common configurations. Therefore openQA was introduced and became an indispensable part of the openSUSE development and release processes. openQA is an automated test tool for operating systems. It allows to test the whole installation process of an operating system in a wide range of software and hardware configurations by leveraging qemu. This talk gives an introduction to openQA and explains how openQA works to help understand what it's output means.