Messages in journal systemd-udevd[813]: /usr/lib/udev/rules.d/69-libftdi.rules:2 Unknown group 'plugdev', ignoring udev rule was added by guillomovitch in https://svnweb.mageia.org/packages?view=revision&revision=1895370 The group plugdev needs to be created on package installation or the rule needs to be change to an existing group.