diff --git a/roles/base/defaults/main.yml b/roles/base/defaults/main.yml
index 02efd74..1fd1260 100644
--- a/roles/base/defaults/main.yml
+++ b/roles/base/defaults/main.yml
@@ -6,7 +6,7 @@ debian_pvc_repository: https://repo.parallelvirtualcluster.org/debian
 debian_pvc_signing_key_path: https://repo.parallelvirtualcluster.org/debian/bonifacelabs_signing_key.pub
 debian_pvc_signing_key_id: 83D07192314835D4
 
-grub_cmdline: "console=tty0 console=ttyS{{ grub.serial_console[cluster_hardware].console }},115200 plymouth.ignore-serial-consoles splash"
+grub_cmdline: "systemd.unified_cgroup_hierarchy=0 console=tty0 console=ttyS{{ grub.serial_console[cluster_hardware].console }},115200 plymouth.ignore-serial-consoles splash"
 grub_serial: "serial --unit={{ grub.serial_console[cluster_hardware].console }} --speed=115200"
 
 deploy_username: "deploy"