by downgrading udev to version 208-35.1 following packages were also downgrades and a caused a mkinitrd run. reboot passed successful # zypper in -f udev=208-35.1 libudev1-208-35.1.x86_64.rpm udev-208-35.1.x86_64.rpm systemd-208-35.1.x86_64.rpm systemd-sysvinit-208-35.1.x86_64.rpm libgudev-1_0-0-208-35.1.x86_64.rpm systemd-208-35.1 systemd-sysvinit-208-35.1 libgudev-1_0-0-208-35.1