diff --git a/build_library/grub.cfg b/build_library/grub.cfg
index d10de0ffb6..402e35cf5a 100644
--- a/build_library/grub.cfg
+++ b/build_library/grub.cfg
@@ -19,7 +19,7 @@ set randomize_disk_guid=""
 set oem_id=""
 
 # Anything else the OEM adds should use this variable.
-set linux_append="testparam1"
+set linux_append="systemd.unified_cgroup_hierarchy=false systemd.legacy_systemd_cgroup_controller=false"
 
 set secure_boot="0"