diff --git a/pkg/csi/driver/bv_controller.go b/pkg/csi/driver/bv_controller.go
index 272cbb68e..d21b19d2a 100644
--- a/pkg/csi/driver/bv_controller.go
+++ b/pkg/csi/driver/bv_controller.go
@@ -790,19 +790,24 @@ func generatePublishContext(volumeAttachmentOptions VolumeAttachmentOption, log
 
 	log.With("volumeAttachedId", *volumeAttached.GetId()).Info("Publishing iSCSI Volume Completed.")
 
+	publishContext := map[string]string{
+		attachmentType:     attachmentTypeISCSI,
+		disk.ISCSIIQN:      *iSCSIVolumeAttached.Iqn,
+		disk.ISCSIIP:       *iSCSIVolumeAttached.Ipv4,
+		disk.ISCSIPORT:     strconv.Itoa(*iSCSIVolumeAttached.Port),
+		csi_util.VpusPerGB: vpusPerGB,
+		needResize:         needsResize,
+		newSize:            expectedSize,
+		multipathEnabled:   multipath,
+		multipathDevices:   string(multiPathDevicesJson),
+	}
+
+	if dev := volumeAttached.GetDevice(); dev != nil {
+		publishContext["device"] = *dev
+	}
+
 	return &csi.ControllerPublishVolumeResponse{
-		PublishContext: map[string]string{
-			attachmentType:     attachmentTypeISCSI,
-			device:             *volumeAttached.GetDevice(),
-			disk.ISCSIIQN:      *iSCSIVolumeAttached.Iqn,
-			disk.ISCSIIP:       *iSCSIVolumeAttached.Ipv4,
-			disk.ISCSIPORT:     strconv.Itoa(*iSCSIVolumeAttached.Port),
-			csi_util.VpusPerGB: vpusPerGB,
-			needResize:         needsResize,
-			newSize:            expectedSize,
-			multipathEnabled:   multipath,
-			multipathDevices:   string(multiPathDevicesJson),
-		},
+		PublishContext: publishContext,
 	}, nil
 }
 
diff --git a/pkg/oci/client/volume_attachment.go b/pkg/oci/client/volume_attachment.go
index e2c0fa3b0..525e45b43 100644
--- a/pkg/oci/client/volume_attachment.go
+++ b/pkg/oci/client/volume_attachment.go
@@ -18,6 +18,7 @@ import (
 	"context"
 	"fmt"
 	"math/rand"
+	"strings"
 	"time"
 
 	"github.com/oracle/oci-cloud-controller-manager/pkg/util"
@@ -140,13 +141,16 @@ func (c *client) AttachVolume(ctx context.Context, instanceID, volumeID string)
 		return nil, errors.WithStack(err)
 	}
 
+	var attachVolumeDetails = core.AttachIScsiVolumeDetails{
+		InstanceId: &instanceID,
+		VolumeId:   &volumeID,
+	}
+	if !strings.Contains(volumeID, "bootvolume") {
+		attachVolumeDetails.Device = device
+	}
 	resp, err := c.compute.AttachVolume(ctx, core.AttachVolumeRequest{
-		AttachVolumeDetails: core.AttachIScsiVolumeDetails{
-			InstanceId: &instanceID,
-			VolumeId:   &volumeID,
-			Device:     device,
-		},
-		RequestMetadata: c.requestMetadata,
+		AttachVolumeDetails: attachVolumeDetails,
+		RequestMetadata:     c.requestMetadata,
 	})
 	incRequestCounter(err, createVerb, volumeAttachmentResource)