SUBSYSTEM=="tty", KERNEL=="tty[0-9]|tty1[0-2]", TAG+="systemd"
SUBSYSTEM=="tty", KERNEL=="tty[a-zA-Z]*|hvc*", TAG+="systemd"
+KERNEL=="vport*", TAG+="systemd"
+
SUBSYSTEM=="block", KERNEL!="ram*|loop*", TAG+="systemd"
SUBSYSTEM=="block", KERNEL!="ram*|loop*", ENV{DM_UDEV_DISABLE_OTHER_RULES_FLAG}=="1", ENV{SYSTEMD_READY}="0"