diff --git a/pkg/internal/checkup/checkup.go b/pkg/internal/checkup/checkup.go
index 434c34b..74667fc 100644
--- a/pkg/internal/checkup/checkup.go
+++ b/pkg/internal/checkup/checkup.go
@@ -231,12 +231,15 @@ func newVMUnderTestConfigMap(checkupConfig config.Config) *corev1.ConfigMap {
 
 func newRealtimeVMI(checkupConfig config.Config) *kvcorev1.VirtualMachineInstance {
 	const (
-		CPUSocketsCount = 1
-		CPUCoresCount   = 4
-		CPUTreadsCount  = 1
-		hugePageSize    = "1Gi"
-		guestMemory     = "4Gi"
-		rootDiskName    = "rootdisk"
+		CPUSocketsCount   = 1
+		CPUCoresCount     = 4
+		CPUTreadsCount    = 1
+		hugePageSize      = "1Gi"
+		guestMemory       = "4Gi"
+		rootDiskName      = "rootdisk"
+		configDiskSerial  = "DEADBEEF"
+		cloudInitDiskName = "cloudinitdisk"
+		configVolumeName  = "realtime-config"
 	)
 
 	return vmi.New(randomizeName(VMINamePrefix),
@@ -253,9 +256,22 @@ func newRealtimeVMI(checkupConfig config.Config) *kvcorev1.VirtualMachineInstanc
 		vmi.WithNodeSelector(checkupConfig.VMUnderTestTargetNodeName),
 		vmi.WithContainerDisk(rootDiskName, checkupConfig.VMUnderTestContainerDiskImage),
 		vmi.WithVirtIODisk(rootDiskName),
+		vmi.WithConfigMapVolume(configVolumeName, VMUnderTestConfigMapNamePrefix),
+		vmi.WithConfigMapDisk(configVolumeName, configDiskSerial),
+		vmi.WithCloudInitNoCloudVolume(cloudInitDiskName,
+			vmi.CloudInit(realtimeVMIBootCommands(configDiskSerial))),
 	)
 }
 
+func realtimeVMIBootCommands(configDiskSerial string) []string {
+	const configMountDirectory = "/mnt/app-config"
+
+	return []string{
+		fmt.Sprintf("mkdir %s", configMountDirectory),
+		fmt.Sprintf("mount /dev/$(lsblk --nodeps -no name,serial | grep %s | cut -f1 -d' ') %s", configDiskSerial, configMountDirectory),
+	}
+}
+
 func randomizeName(prefix string) string {
 	const randomStringLen = 5
 
diff --git a/pkg/internal/checkup/vmi/vmi.go b/pkg/internal/checkup/vmi/vmi.go
index b342f88..d6d4082 100644
--- a/pkg/internal/checkup/vmi/vmi.go
+++ b/pkg/internal/checkup/vmi/vmi.go
@@ -20,6 +20,9 @@
 package vmi
 
 import (
+	"fmt"
+	"strings"
+
 	corev1 "k8s.io/api/core/v1"
 
 	"k8s.io/apimachinery/pkg/api/resource"
@@ -199,6 +202,31 @@ func WithContainerDisk(volumeName, imageName string) Option {
 	}
 }
 
+func WithConfigMapVolume(name, configMapName string) Option {
+	return func(vmi *kvcorev1.VirtualMachineInstance) {
+		vmi.Spec.Volumes = append(vmi.Spec.Volumes, kvcorev1.Volume{
+			Name: name,
+			VolumeSource: kvcorev1.VolumeSource{
+				ConfigMap: &kvcorev1.ConfigMapVolumeSource{
+					LocalObjectReference: corev1.LocalObjectReference{Name: configMapName},
+					Optional:             Pointer(false),
+				},
+			},
+		})
+	}
+}
+
+func WithConfigMapDisk(name, serial string) Option {
+	return func(vmi *kvcorev1.VirtualMachineInstance) {
+		vmi.Spec.Domain.Devices.Disks = append(vmi.Spec.Domain.Devices.Disks,
+			kvcorev1.Disk{
+				Name:   name,
+				Serial: serial,
+			},
+		)
+	}
+}
+
 func WithCloudInitNoCloudVolume(name, userData string) Option {
 	return func(vmi *kvcorev1.VirtualMachineInstance) {
 		newVolume := kvcorev1.Volume{
@@ -214,6 +242,21 @@ func WithCloudInitNoCloudVolume(name, userData string) Option {
 	}
 }
 
+func CloudInit(bootCommands []string) string {
+	sb := strings.Builder{}
+	sb.WriteString("#cloud-config\n")
+
+	if len(bootCommands) != 0 {
+		sb.WriteString("bootcmd:\n")
+
+		for _, command := range bootCommands {
+			sb.WriteString(fmt.Sprintf("  - %q\n", command))
+		}
+	}
+
+	return sb.String()
+}
+
 func Pointer[T any](v T) *T {
 	return &v
 }