- xbt_assert(xbt_lib_get_or_null(storage_lib, mount->storageId, ROUTING_STORAGE_LEVEL),
- "Cannot mount non-existent disk \"%s\"", mount->storageId);
+ xbt_assert(std::find(known_storages.begin(), known_storages.end(), mount->storageId) != known_storages.end(),
+ "Cannot mount non-existent disk \"%s\"", mount->storageId);