diff --git a/nova/virt/libvirt/driver.py b/nova/virt/libvirt/driver.py
index bf39a475310..527a1de140a 100644
--- a/nova/virt/libvirt/driver.py
+++ b/nova/virt/libvirt/driver.py
@@ -11795,7 +11795,21 @@ def migrate_disk_and_power_off(self, context, instance, migration,
             connection_info = vol['connection_info']
             self._disconnect_volume(context, connection_info, instance)
 
-        disk_info = self._get_instance_disk_info(instance, block_device_info)
+        # For boot-from-volume instances the domain may already be gone from
+        # libvirt (e.g. on a migration retry) but there are no local disks to
+        # copy, so InstanceNotFound is safe to ignore here.
+        if booted_from_volume:
+            try:
+                disk_info = self._get_instance_disk_info(instance,
+                                                         block_device_info)
+            except exception.InstanceNotFound:
+                LOG.debug('Libvirt domain not found for boot-from-volume '
+                          'instance during migration, no local disks to '
+                          'copy.', instance=instance)
+                disk_info = []
+        else:
+            disk_info = self._get_instance_disk_info(instance,
+                                                     block_device_info)
 
         try:
             # If cleanup failed in previous resize attempts we try to remedy