The systemd Project https://systemd.io Check for system updates Authentication is required to check for system updates. auth_admin auth_admin yes Install system updates Authentication is required to install system updates. auth_admin auth_admin yes Install specific system version Authentication is required to update the system to a specific (possibly old) version. auth_admin auth_admin auth_admin_keep Cleanup old system updates Authentication is required to cleanup old system updates. auth_admin auth_admin auth_admin_keep Manage optional features Authentication is required to manage optional features. auth_admin auth_admin auth_admin_keep