message: dist/systemd: don't start Zincati if booted as a live system
  We can't perform updates in that case.
diff: [Unit]
  Description=Zincati Update Agent
  Documentation=https://github.com/coreos/zincati
  +# Skip live systems not meant to be auto-updated (e.g. live PXE, live ISO)
  +ConditionPathExists=!/run/ostree-live
  After=network.target
  # Wait for the boot to be marked as successful. In cluster contexts,
  # this prevents rolling out broken updates to all nodes in the fleet.
  