Index: sbin/geom/class/mountver/geom_mountver.c
===================================================================
--- sbin/geom/class/mountver/geom_mountver.c
+++ sbin/geom/class/mountver/geom_mountver.c
@@ -43,14 +43,14 @@
 	    {
 		G_OPT_SENTINEL
 	    },
-	    "[-v] dev ..."
+	    "[-v] prov ..."
 	},
 	{ "destroy", G_FLAG_VERBOSE, NULL,
 	    {
 		{ 'f', "force", NULL, G_TYPE_BOOL },
 		G_OPT_SENTINEL
 	    },
-	    "[-fv] prov ..."
+	    "[-fv] name"
 	},
 	G_CMD_SENTINEL
 };
Index: sbin/geom/class/mountver/gmountver.8
===================================================================
--- sbin/geom/class/mountver/gmountver.8
+++ sbin/geom/class/mountver/gmountver.8
@@ -35,11 +35,11 @@
 .Nm
 .Cm create
 .Op Fl v
-.Ar dev ...
+.Ar prov ...
 .Nm
 .Cm destroy
 .Op Fl fv
-.Ar prov ...
+.Ar name
 .Nm
 .Cm list
 .Nm
@@ -66,8 +66,11 @@
 indicates an action to be performed:
 .Bl -tag -width ".Cm destroy"
 .It Cm create
-Cache the given devices with specified
-.Ar name .
+Enable mount verification for the given provider.
+If the operation succeeds, a new GEOM provider will be created using the
+given provider's name with a
+.Ql .mountver
+suffix.
 The kernel module
 .Pa geom_mountver.ko
 will be loaded if it is not loaded already.