Changing VM IP address with CustomizeVM_Task failing with fault.CustomizationPending.summary when using open-vm-tools

Hello,

I'm trying to customize a Linux (RHEL 6.4) VM's network configuration (IP address, dns, gateway, hostname) using the VMware Perl SDK. It works fine with VMware tools installed, but when using open-vm-tools it fails with the following error:

$VAR1 = bless( {

  'queueTime' => '2014-10-29T09:29:04.537587Z',

  'entityName' => 'my-new-hostname',

  'error' => bless( {

  'localizedMessage' => 'fault.CustomizationPending.summary',

  'fault' => bless( {}, 'CustomizationPending' )

  }, 'LocalizedMethodFault' ),

  'reason' => bless( {

  'userName' => 'deploypgih'

  }, 'TaskReasonUser' ),

  'cancelable' => '0',

  'eventChainId' => '2057315',

  'entity' => bless( {

  'value' => 'vm-682',

  'type' => 'VirtualMachine'

  }, 'ManagedObjectReference' ),

  'completeTime' => '2014-10-29T09:29:04.643604Z',

  'state' => bless( {

  'val' => 'error'

  }, 'TaskInfoState' ),

  'startTime' => '2014-10-29T09:29:04.544589Z',

  'name' => 'CustomizeVM_Task',

  'task' => bless( {

  'value' => 'task-31912',

  'type' => 'Task'

  }, 'ManagedObjectReference' ),

  'descriptionId' => 'VirtualMachine.customize',

  'key' => 'task-31912',

  'cancelled' => '0'

}, 'TaskInfo' );

SOAP Fault:

-----------

Fault string: fault.CustomizationPending.summary

Fault detail: CustomizationPending

I don't get why it says CustomizationPending as there is no other task running at the same time.

Here is the script used:

my $dns_list = CustomizationGlobalIPSettings->new(

   dnsServerList => \@dnsServers,

   dnsSuffixList => \@dnsSuffixList);

my $linuxPrep = CustomizationLinuxPrep->new(

   domain => $dnsDomain,

   hostName => CustomizationFixedName->new(name => "$vmname"),

   hwClockUTC => 0,

   timeZone => "Europe/Paris ");

my $customizationIPSettings = CustomizationIPSettings->new(

   dnsDomain => $dnsDomain,

   dnsServerList => \@dnsServers,

   ip => CustomizationFixedIp->new(ipAddress => "$ipAddress"),

   gateway => \@gateway,

   subnetMask => $netmask);

my $nic0_setting = CustomizationAdapterMapping->new(

   adapter => $customizationIPSettings,

   macAddress => $interfaceMacAddress);

my @nicsetting = ($nic0_setting);

my $customSpec = CustomizationSpec->new(

   globalIPSettings => $dns_list,

   identity => $linuxPrep,

   nicSettingMap => \@nicsetting);

$task=$vm->CustomizeVM_Task(spec => $customSpec);

&wait_task_completion($task,color("bold green")."OK\n".color("reset"));

Is there something I am doing incorrectly here ?

Thanks in advance for your help.