Comment 12 for bug 1929449

> I can confirm that this quirk disables upgrades on OpenPOWER hardware (which is not EFI based). Tested with OpenPOWER/Raptor Computing Systems Talos II on groovy.

Please note that OpenPOWER systems do not support DMI. OPAL provides platform metadata in sysfs (platform, vendor make/model and version information can be found under /sys/firmware/devicetree/base/{vendor,model-name,model}).