Hi,

I would like testing server name in a script to see in which domaine the computer is:

$tsenv = New-Object -COMObject Microsoft.SMS.TSEnvironment
$servers = "server1","server2","server3"
Foreach($s in $servers) {

 if (Test-Connection -Cn $s -BufferSize 16 -Count 1 -ea 0 -quiet){
 
  Echo $s
  $tsenv.value("SCCMServer")=$s
 
 }

Then I get impossible calling a method from a null expression.

$s is existing as server1 so the SCCMServer variable should get server1 as value...

Where am I wrong and how solving it?

You have some issue in the script. You are missing 1 curly bracket and also Echo is not a powershell thing

$tsenv = New-Object -COMObject Microsoft.SMS.TSEnvironment
$servers = "server1","server2","server3"
Foreach($s in $servers) {

 if (Test-Connection -Cn $s -BufferSize 16 -Count 1 -ea 0 -quiet)
    {
         write-host $s
         $tsenv.value("SCCMServer")=$s 
    }
 }

Also the error you are getting impossible calling a method from a null expression this is from the test-connection command

Hi,

#$tsenv = New-Object -COMObject Microsoft.SMS.TSEnvironment
$servers = "server1","server2","server3"Foreach($s in $servers) {
 
 if (Test-Connection -Cn $s -BufferSize 16 -Count 1 -ea 0 -quiet)
     {
          write-host $s
        #  $tsenv.value("SCCMServer")=$s 
     }
  }

This is not generating any error as I rem anything about tsenv. But I need creating environment variable in my ts and then I get the error as soon as I remove #.

• Edited by FRacine 12 hours 18 minutes ago

Microsoft.SMS.TSEnvironment only exists when a task sequence is running, and you need to be in the Admin or System context to set TS variables.

• Edited by Kerwin MedinaMicrosoft employee 12 hours 3 minutes ago

Hi,

So there is no way to test such script outside a TS?

Thanks,

Hi,

No you need to run it with the task seqeunce engine is running, run a powershell skript with a long sleep and then press F8 when you have Command shell enabled in the boot image.

Regards,
Jrgen

You are trying to access the environment that gets created only when a task sequence is running. This environment is deleted when the task sequence ends.

If you just want to test in the full OS, you can run a task sequence that will just 'hang' (e.g, command-line step to run Notepad). You can then test your script while the task sequence is still running.

Hi,

#$tsenv = New-Object -COMObject Microsoft.SMS.TSEnvironment
$servers = "server1","server2","server3"Foreach($s in $servers) {
 
 if (Test-Connection -Cn $s -BufferSize 16 -Count 1 -ea 0 -quiet)
     {
          write-host $s
        #  $tsenv.value("SCCMServer")=$s 
     }
  }

This is not generating any error as I rem anything about tsenv. But I need creating environment variable in my ts and then I get the error as soon as I remove #.

• Edited by FRacine Monday, August 31, 2015 7:32 PM

Microsoft.SMS.TSEnvironment only exists when a task sequence is running, and you need to be in the Admin or System context to set TS variables.

• Edited by Kerwin MedinaMicrosoft employee Monday, August 31, 2015 7:47 PM

Hi,

I just start a TS and ran my script. The variable was not created. So I ran again the TS and press F8 then ran manually the ps1.

$tsenv = New-Object -COMObject Microsoft.SMS.TSEnvironment
$servers = "server1","server2","server3"
Foreach($s in $servers) {
 
 if (Test-Connection -Cn $s -BufferSize 16 -Count 1 -ea 0 -quiet)
     {
          write-host $s
          $tsenv.value("SCCMServer")=$s 
		  
     }
  }

From the TS, I am calling my script with this:

From the smsts.log, I read no error:

But the environment variable: SCCMServer is not appearing.

I ran set and did not saw that variable.

When you ran the script manually did you see a value being echo to the power shell ?

If you did not see anything means that none of the server where reachable and would make sense to have the error being empty.

Also to run the script you need to be inside the task sequence. The easy thing is to do like Jorgen propose make a script with a pause of like 1 hour. 

• Edited by Frederick Dicaire 16 hours 59 minutes ago

Hi,

I agree with you. Yes a servername is echoed but the variable is not create. Do I need a reboot to make it appearing?

• Edited by FRacine 16 hours 38 minutes ago