Wednesday, August 12, 2015

Set virtual machine boot order (via vRealize Orchestrator workflow)

I sometimes came up the requirement to set the virtual machine boot order on automation projects. A long time there was no easy way to modify the boot order with automatically but since quite a while you can modify the boot order simply via API.
So now I share a workflow to modify the boot order with vRealize Orchestrator. This workflow will change the boot order to:
1. CD-ROM Drive
2. Network boot (first found Ethernet device)
3. Hard Drive (hard disk at SCSI 0:0)
4. Removable devices

If you prefer any other order, feel free to modify the workflow.

The JavaScript code to modify the boot order is:
var myVcVirtualEthernet = null;
var myVcVirtualDisk     = null;

for each ( var myDevice in virtualmachine.config.hardware.device ) {
     switch ( true ) {
          case myDevice instanceof VcVirtualE1000:
          case myDevice instanceof VcVirtualE1000e:
          case myDevice instanceof VcVirtualPCNet32:
          case myDevice instanceof VcVirtualVmxnet:
          case myDevice instanceof VcVirtualVmxnet2:
          case myDevice instanceof VcVirtualVmxnet3:
               if ( myVcVirtualEthernet == null ) {
                    myVcVirtualEthernet = myDevice;
          case myDevice instanceof VcVirtualDisk:
               if ( myDevice.controllerKey == 1000 && myDevice.unitNumber == 0 ) {
                    myVcVirtualDisk = myDevice;

if ( myVcVirtualEthernet == null ) {
     throw "No Ethernet device found on virtual machine " +;

if ( myVcVirtualDisk == null ) {
     throw "No Disk device found on virtual machine " + + " on SCSi 0:0";

var myVcVirtualMachineBootOptionsBootableDeviceArray = new Array() ;

var myVcVirtualMachineBootOption = new VcVirtualMachineBootOptionsBootableCdromDevice();
myVcVirtualMachineBootOptionsBootableDeviceArray.push( myVcVirtualMachineBootOption );

var myVcVirtualMachineBootOption = new VcVirtualMachineBootOptionsBootableEthernetDevice();
myVcVirtualMachineBootOption.deviceKey = myVcVirtualEthernet.key;
myVcVirtualMachineBootOptionsBootableDeviceArray.push( myVcVirtualMachineBootOption );

var myVcVirtualMachineBootOption = new VcVirtualMachineBootOptionsBootableDiskDevice();
myVcVirtualMachineBootOption.deviceKey = myVcVirtualDisk.key;
myVcVirtualMachineBootOptionsBootableDeviceArray.push( myVcVirtualMachineBootOption );

var myVcVirtualMachineBootOptions = new VcVirtualMachineBootOptions() ;
myVcVirtualMachineBootOptions.bootOrder = myVcVirtualMachineBootOptionsBootableDeviceArray;

var myVcVirtualMachineConfigSpec = new VcVirtualMachineConfigSpec() ;
myVcVirtualMachineConfigSpec.bootOptions = myVcVirtualMachineBootOptions;

var myVcTask = virtualmachine.reconfigVM_Task( myVcVirtualMachineConfigSpec );

Workflow schema:

You can download the workflow from VMware Orchestrator Community here.


  1. Hello. Great job. I did not expect this on a Wednesday. This is a great story. Thanks! for seagate 1tb external hard disk visit Nayashopi

  2. Thanks man, you did a great job, I tested it and it is working (Y)