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Automatically update MDT 2010 boot images in WDS

  • Article

You’ve probably gone through this cycle if you are using WDS to PXE boot computers to start bare metal Lite Touch deployments:

  • Import new drivers or change bootstrap.ini.
  • “Update deployment share” to generate new WIMs.
  • Import new WIMs into WDS.

Fortunately, with the new “update” process in MDT 2010, described in more detail at https://blogs.technet.com/mniehaus/archive/2009/07/10/mdt-2010-new-feature-17-customizable-boot-image-process.aspx, it’s pretty simple to add a script to automate this process.  First, the script:

Option Explicit

Dim oShell, oEnv

Set oShell = CreateObject("WScript.Shell")
Set oEnv = oShell.Environment("PROCESS")

If oEnv("STAGE") = "ISO" then

    Dim sCmd, rc

    sCmd = "WDSUTIL /Replace-Image /Image:""Lite Touch Windows PE (" & oEnv("PLATFORM") & ")"" /ImageType:Boot /Architecture:" & oEnv("PLATFORM") & " /ReplacementImage /ImageFile:""" & oEnv("CONTENT") & "\Sources\Boot.wim"""
    WScript.Echo "About to run command: " & sCmd

    rc = oShell.Run(sCmd, 0, true)
    WScript.Echo "WDSUTIL rc = " & CStr(rc)

    WScript.Quit 1

End if

You’ll need to update the image name in the string above if you’ve changed it from the default of “Lite Touch Windows PE (x86)” and “Lite Touch Windows PE (x64)” since the script doesn’t know what you’ve changed the values to.  Save the edited script as something like “C:\Scripts\UpdateExit.vbs”.  Then, edit the “C:\Program Files\Microsoft Deployment Toolkit\Templates\LiteTouchPE.xml” file so that these lines:

<!-- Exits -->
<Exits>
  <Exit>cscript.exe "%INSTALLDIR%\Samples\UpdateExit.vbs"</Exit>
</Exits>

Instead look like this:

<!-- Exits -->
<Exits>
  <Exit>cscript.exe "%INSTALLDIR%\Samples\UpdateExit.vbs"</Exit>
  <Exit>cscript.exe "C:\Scripts\UpdateExit.vbs"</Exit>
</Exits>

Then make a change that requires re-generating the WIM and ISOs, e.g. change something in bootstrap.ini.  You’ll see in the “Update Deployment Share” output the generated WDSUTIL command that updates the boot image in WDS.  If WDS is located on a different server, you’ll need to update the command in the script above to add “/Server:WDSServerName” to the command.  (WDSUTIL must also be available on the machine, so you may need to install the RSAT WDS tools.)

Extra credit for someone who can convert this into a PowerShell script and look up the right boot image name :-)

Comments

  • Anonymous
    January 01, 2003
    The comment has been removed

  • Anonymous
    January 01, 2003
    The comment has been removed

  • Anonymous
    January 01, 2003
    Hi Michael, I just wanted to add some additional information about this process. In fact, because there isn't a "POSTWIM" phase it is necessary to do these automated process during "POSTISO" phase and require that "Generate a Lite Touch bootable ISO image" option have been enabled (for LiteTouch Image) In addition it is required to have already added these boot images in WDS manually at least one time. is it true ?

  • Anonymous
    July 11, 2012
    Hi guys, When i use the scirpt i have this message at the end of the update of the deploymentshare. About to run command: WDSUTIL /Replace-Image /Image:"Lite Touch Windows PE (x86)" /ImageType:Boot /Architecture:x86 /ReplacementImage /ImageFile:"C:UserstissirmAppDataLocalTemp32MDTUpdate.10468ISOSourcesBoot.wim" WDSUTIL rc = -1056702168  Exit code = 1 Can you help me?

  • Anonymous
    November 14, 2013
    Thanks Micael and people that have commented so far! Really useful script (VBScript and PS, in comments). Sure I will test PS someday.

Denver: I think, that another possibility, we can copy the file to a network share on the server with WDS and add the image from this share. How the file is locally at the WDS Server, the problem described should not happen. I did not tested this, only thinking. Maybe worth the try. Maybe someone with the same problem could test and say for us the result.

  • Anonymous
    November 23, 2015
    Thanks for the great info. I really loved this. I would like to apprentice at the same time as you amend your web site, how could i subscribe for a blog site?
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