Index: vfs_subr.c
===================================================================
--- vfs_subr.c	(revision 287155)
+++ vfs_subr.c	(working copy)
@@ -3548,6 +3548,8 @@
 {
 	int error;
 
+	printf("Unmounting %s (%s)...", mp->mnt_stat.f_mntonname,
+			mp->mnt_vfc->vfc_name);
 	error = dounmount(mp, MNT_FORCE, curthread);
 	if (error != 0) {
 		printf("unmount of %s failed (", mp->mnt_stat.f_mntonname);
@@ -3556,6 +3558,8 @@
 		else
 			printf("%d)\n", error);
 	}
+	else
+		printf("done\n");
 }
 
 /*