diff --git a/lib/activate/activate.c b/lib/activate/activate.c
index 4cf841045..e86b47c45 100644
--- a/lib/activate/activate.c
+++ b/lib/activate/activate.c
@@ -7,17 +7,76 @@
 #include "metadata.h"
 #include "activate.h"
 
+#include <device-mapper/libdm.h>
+
 int lv_activate(struct logical_volume *lv)
 {
-	return 0;
+	int r = 0;
+	uint64_t esize = lv->vg->extent_size;
+	uint64_t start = 0ull;
+	char params[1024];
+	struct pe_specifier *pes;
+	struct dm_task *dmt;
+
+	if (!(dmt = dm_task_create(DM_DEVICE_CREATE))) {
+		stack;
+		return 0;
+	}
+
+	dm_command_set_name(c, lv->uuid);
+
+	for (i = 0; i < lv->le_count; i++) {
+		pes = lv->map + i;
+		snprintf(params, sizeof(params), "%s %ull",
+			 dev_name(pes->pv.dev),
+			 pes->pv->pe_start + (esize * pes->pe));
+
+		if (!dm_task_add_target(dmt, start, size, "linear", params)) {
+			stack;
+			goto out;
+		}
+
+		start += esize;
+	}
+
+	if (!(r = dm_task_run(c)))
+		stack;
+
+ out:
+	dm_command_destroy(c);
+	return r;
+}
+
+int activate_lvs_in_vg(struct volume_group *vg)
+{
+	struct list *lvh;
+
+	int done = 0;
+
+	list_iterate(lvh, &vg->lvs)
+		done += lv_activate(&list_item(lvh, struct lv_list)->lv);
+
+	return done;
 }
 
 int lv_deactivate(struct logical_volume *lv)
 {
-	return 0;
+	struct dm_task *dmt = dm_command_create(DM_DEVICE_REMOVE);
+	if (!c) {
+		stack;
+		return 0;
+	}
+
+	dm_command_set_name(c, lv->uuid);
+	if (!(r = dm_command_run()))
+		stack;
+
+ out:
+	dm_task_destroy(dmt);
+	return r;
 }
 
-int lvs_in_vg_activated(struct volume_group *vg)
+int lv_deactivate(struct volume_group *vg, struct logical_volume *lv)
 {
 	return 0;
 }
@@ -27,28 +86,14 @@ int lv_update_write_access(struct logical_volume *lv)
 	return 0;
 }
 
-int activate_lvs_in_vg(struct volume_group *vg)
-{
-	struct list *lvh;
-
-	int done = 0;
-	
-	list_iterate(lvh, &vg->lvs)
-		done += lv_activate(&list_item(lvh, struct lv_list)->lv);
-
-	return done;
-}
-
 int deactivate_lvs_in_vg(struct volume_group *vg)
 {
 	struct list *lvh;
 
 	int done = 0;
-	
+
 	list_iterate(lvh, &vg->lvs)
 		done += lv_deactivate(&list_item(lvh, struct lv_list)->lv);
 
 	return done;
 }
-
-