diff --git a/kola/tests/misc/tang.go b/kola/tests/misc/tang.go
index 3abd2f554..3fa86ba85 100644
--- a/kola/tests/misc/tang.go
+++ b/kola/tests/misc/tang.go
@@ -25,9 +25,6 @@ import (
 )
 
 const (
-	// In the Ignition config below, we create a partition labeled ROOT on a second disk.
-	// As advised in the Flatcar documentation, we then remove the ROOT label from the existing
-	// root partition, which is vda9 in the QEMU disk image.
 	IgnitionConfigRootTang = `{
 		"ignition": {
 			"config": {},
@@ -63,19 +60,17 @@ const (
 				}
 			],
 			"filesystems": [
+				{
+					"device": "/dev/disk/by-partlabel/ROOT",
+					"format": "none",
+					"wipeFilesystem": true
+				},
 				{
 					"device": "/dev/disk/by-id/dm-name-rootencrypted",
 					"format": "ext4",
 					"label": "ROOT"
 				}
 			]
-		},
-		"systemd": {
-			"units": [{
-			"name": "remove-root-label.service",
-			"enabled": true,
-			"contents": "[Service]\nType=oneshot\nExecStart=wipefs -a /dev/vda9\n[Install]\nWantedBy=multi-user.target"
-			}]
 		}
 	}`
 
diff --git a/kola/tests/misc/tpm.go b/kola/tests/misc/tpm.go
index 32891fcba..5338ceedb 100644
--- a/kola/tests/misc/tpm.go
+++ b/kola/tests/misc/tpm.go
@@ -17,9 +17,6 @@ import (
 )
 
 const (
-	// In the Ignition config below, we create a partition labeled ROOT on a second disk.
-	// As advised in the Flatcar documentation, we then remove the ROOT label from the existing
-	// root partition, which is vda9 in the QEMU disk image.
 	IgnitionConfigRootTPM = `{
 		"ignition": {
 			"config": {},
@@ -50,19 +47,17 @@ const (
 				}
 			],
 			"filesystems": [
+				{
+					"device": "/dev/disk/by-partlabel/ROOT",
+					"format": "none",
+					"wipeFilesystem": true
+				},
 				{
 					"device": "/dev/disk/by-id/dm-name-rootencrypted",
 					"format": "ext4",
 					"label": "ROOT"
 				}
 			]
-		},
-		"systemd": {
-			"units": [{
-			"name": "remove-root-label.service",
-			"enabled": true,
-			"contents": "[Service]\nType=oneshot\nExecStart=wipefs -a /dev/vda9\n[Install]\nWantedBy=multi-user.target"
-			}]
 		}
 	}`