add support to specify additional udev trigger options

modules.d/50plymouth/plymouth-pretrigger.sh

@@ -2,7 +2,11 @@
 
 # first trigger graphics subsystem
 udevadm trigger --attr-match=class=0x030000
+# first trigger graphics and tty subsystem
 udevadm trigger --subsystem-match=graphics --subsystem-match=tty >/dev/null 2>&1
+# add nomatch for full trigger
+echo " --subsystem-nomatch=graphics --subsystem-nomatch=tty " >> /tmp/udevtriggeropts
+
 udevadm settle --timeout=30 >/dev/null 2>&1
 [ -c /dev/null ] || mknod /dev/null c 1 3
 [ -c /dev/zero ] || mknod /dev/zero c 1 5

modules.d/99base/init

@@ -74,7 +74,7 @@ getarg rdudevdebug && udevadm control --log_priority=debug
 source_all pre-trigger
 
 # then the rest
-udevadm trigger >/dev/null 2>&1
+udevadm trigger $(cat /tmp/udevtriggeropts) >/dev/null 2>&1
 udevadm settle --timeout=30 >/dev/null 2>&1
 
 # pre-mount happens before we try to mount the root filesystem,