diff --git a/qubes/storage/lvm.py b/qubes/storage/lvm.py
index 5aad339a..794ded7e 100644
--- a/qubes/storage/lvm.py
+++ b/qubes/storage/lvm.py
@@ -43,7 +43,7 @@ class ThinPool(qubes.storage.Pool):
         self.log = logging.getLogger('qube.storage.lvm.%s' % self._pool_id)
 
     def clone(self, source, target):
-        cmd = ['clone', source.vid, target.vid]
+        cmd = ['clone', str(source), str(target)]
         qubes_lvm(cmd, self.log)
         return target
 
@@ -217,8 +217,10 @@ class ThinPool(qubes.storage.Pool):
     def stop(self, volume):
         if volume.save_on_stop:
             self._commit(volume)
-
-        if volume._is_volatile:
+        if volume._is_snapshot:
+            cmd = ['remove', volume._vid_snap]
+            qubes_lvm(cmd, self.log)
+        elif volume._is_volatile:
             cmd = ['remove', volume.vid]
             qubes_lvm(cmd, self.log)
         else:
@@ -227,6 +229,12 @@ class ThinPool(qubes.storage.Pool):
         return volume
 
     def _snapshot(self, volume):
+        try:
+            cmd = ['remove', volume._vid_snap]
+            qubes_lvm(cmd, self.log)
+        except:  # pylint: disable=bare-except
+            pass
+
         if volume.source is None:
             cmd = ['clone', volume.vid, volume._vid_snap]
         else:
@@ -342,7 +350,7 @@ def qubes_lvm(cmd, log=logging.getLogger('qube.storage.lvm')):
     out, err = p.communicate()
     return_code = p.returncode
     if out:
-        log.info(out)
+        log.debug(out)
     if return_code == 0 and err:
         log.warning(err)
     elif return_code != 0:
diff --git a/qubes/tools/qvm_block.py b/qubes/tools/qvm_block.py
index dd324056..02bef967 100644
--- a/qubes/tools/qvm_block.py
+++ b/qubes/tools/qvm_block.py
@@ -229,8 +229,13 @@ def get_parser():
 
 def main(args=None):
     '''Main routine of :program:`qvm-block`.'''
-    args = get_parser().parse_args(args)
-    args.func(args)
+    parser = get_parser()
+    try:
+        args = parser.parse_args(args)
+        args.func(args)
+    except qubes.exc.QubesException as e:
+        parser.print_error(e.message)
+        return 1
 
 
 if __name__ == '__main__':
diff --git a/qubes/tools/qvm_pool.py b/qubes/tools/qvm_pool.py
index 0444d56d..ca289f6d 100644
--- a/qubes/tools/qvm_pool.py
+++ b/qubes/tools/qvm_pool.py
@@ -187,7 +187,12 @@ def main(args=None):
         command line.
     '''
     parser = get_parser()
-    args = parser.parse_args(args)
+    try:
+        args = parser.parse_args(args)
+    except qubes.exc.QubesException as e:
+        parser.print_error(e.message)
+        return 1
+
     if args.command is None or args.command == 'list':
         list_pools(args.app)
     elif args.command == 'add':
diff --git a/qubes/tools/qvm_start.py b/qubes/tools/qvm_start.py
index 4054265a..ab3106f3 100644
--- a/qubes/tools/qvm_start.py
+++ b/qubes/tools/qvm_start.py
@@ -133,13 +133,17 @@ def main(args=None):
     if args.debug:
         vm.debug = args.debug
 
-    try:
+    if args.debug:
         vm.start(
             preparing_dvm=args.preparing_dvm,
             start_guid=args.start_guid)
-    except qubes.exc.QubesException as e:
-        parser.error_runtime('Qubes error: {!r}'.format(e))
-
+    else:
+        try:
+            vm.start(
+                preparing_dvm=args.preparing_dvm,
+                start_guid=args.start_guid)
+        except qubes.exc.QubesException as e:
+            parser.error_runtime('Qubes error: {!r}'.format(e))
     return 0
 
 
diff --git a/qubes/vm/mix/net.py b/qubes/vm/mix/net.py
index 03b4b13e..a2a318df 100644
--- a/qubes/vm/mix/net.py
+++ b/qubes/vm/mix/net.py
@@ -164,7 +164,7 @@ class NetVMMixin(qubes.events.Emitter):
                 pass
 
             try:
-                vm.attach_network(wait=False)
+                vm.attach_network()
             except qubes.exc.QubesException:
                 vm.log.warning('Cannot attach network', exc_info=1)