Index: sys/geom/mirror/g_mirror.c
===================================================================
--- sys/geom/mirror/g_mirror.c
+++ sys/geom/mirror/g_mirror.c
@@ -2664,7 +2664,9 @@
 
 		error = g_mirror_clear_metadata(disk);
 		if (error != 0)
-			return (error);
+			G_MIRROR_DEBUG(0,
+			    "Device %s: failed to clear metadata on %s: %d.",
+			    sc->sc_name, g_mirror_get_diskname(disk), error);
 		DISK_STATE_CHANGED();
 		G_MIRROR_DEBUG(0, "Device %s: provider %s destroyed.",
 		    sc->sc_name, g_mirror_get_diskname(disk));