I think you're just doing this wrong. Instead of calling "SaveToXml" and then "Put", you need to call the "SetSequence" method on the SMS_TaskSequencePackage class, passing the existing task sequence package object and the new task sequence object into it. (Check the return code to make sure it works. And beware of "secrets", e.g. passwords and product keys, as they can make this process much more difficult...)
Thanks, -Michael From: [email protected] [mailto:[email protected]] On Behalf Of Ryan Sent: Tuesday, March 18, 2014 2:29 PM To: [email protected] Subject: Re: [mssms] Modify Task Sequences with a Script Cool, I voted it up also. Thanks! There is some C# code in the SDK I've found to add steps to a task sequence. I may look at taking that information and creating some functions or cmdlets to do this. On Tue, Mar 18, 2014 at 4:03 PM, Trevor Sullivan <[email protected]<mailto:[email protected]>> wrote: Voted. Cheers, Trevor Sullivan From: [email protected]<mailto:[email protected]> [mailto:[email protected]<mailto:[email protected]>] On Behalf Of Daniel Ratliff Sent: Tuesday, March 18, 2014 4:01 PM To: [email protected]<mailto:[email protected]> Subject: RE: [mssms] Modify Task Sequences with a Script Here you go. Vote away! Also threw a post out on myItForum. Feel free to put any suggestions out there. https://connect.microsoft.com/ConfigurationManagervnext/feedback/details/836341/dcr-ability-to-modify-existing-task-sequence-via-powershell-wmi From: [email protected]<mailto:[email protected]> [mailto:[email protected]<mailto:[email protected]>] On Behalf Of Daniel Ratliff Sent: Tuesday, March 18, 2014 3:18 PM To: [email protected]<mailto:[email protected]> Subject: RE: [mssms] Modify Task Sequences with a Script Hmm, great idea for a DCR. Ill open it on Connect later today, unless someone beats me to it. From: [email protected]<mailto:[email protected]> [mailto:[email protected]]<mailto:[mailto:[email protected]]> On Behalf Of Trevor Sullivan Sent: Tuesday, March 18, 2014 3:14 PM To: [email protected]<mailto:[email protected]> Subject: RE: [mssms] Modify Task Sequences with a Script +1 I just tried writing up the script below, but it didn't end up persisting the changes. Cheers, Trevor Sullivan # Specify the task sequence package ID $PackageID = 'LAB00012'; # 1. Get the task sequence package using fully qualified WMI path $TaskSequence = [wmi]"root\sms\site_lab:SMS_TaskSequencePackage.PackageID='LAB00012'"; # 2. Get reference to the SMS_TaskSequence class $TsClass = [wmiclass]"root\sms\site_lab:SMS_TaskSequence" # 3. Load the XML from the task sequence's "Sequence" property into a SMS_TaskSequence instance $TS = $TsClass.LoadFromXml($TaskSequence.Sequence).ReturnValue; # 4. Get a reference to one of the task sequence step types $SetVarClass = [wmiclass]"root\sms\site_lab:SMS_TaskSequence_SetVariableAction" # 5. Instantiate the task sequence action class $NewSetVarAction = $SetVarClass.CreateInstance(); # 6. Set appropriate properties on the Action $NewSetVarAction.Name = '[PowerShell] Set Variable'; $NewSetVarAction.VariableName = 'OSDPreserveDriveLetter'; $NewSetVarAction.VariableValue = 'False'; # 7. Add the Action to the task sequence steps $TS.Steps += $NewSetVarAction; # 8. Commit the modified WMI object back into XML $NewTS = $TsClass.SaveToXml($TS); # 9. Set the XML on the Sequence property of the SMS_TaskSequence $TaskSequence.Sequence = $NewTS.ReturnValue; # 10. Commit the task sequence changes to WMI $TaskSequence.Put(); From: [email protected]<mailto:[email protected]> [mailto:[email protected]]<mailto:[mailto:[email protected]]> On Behalf Of Daniel Ratliff Sent: Tuesday, March 18, 2014 2:02 PM To: [email protected]<mailto:[email protected]> Subject: RE: [mssms] Modify Task Sequences with a Script I have tried this for a good year now. I can export them and document them, but don't have a way to edit them on the fly without creating new ones with the changes. From: [email protected]<mailto:[email protected]> [mailto:[email protected]]<mailto:[mailto:[email protected]]> On Behalf Of Ryan Sent: Tuesday, March 18, 2014 2:52 PM To: [email protected]<mailto:[email protected]> Subject: [mssms] Modify Task Sequences with a Script Does anyone here know how to modify a task sequence with a script? I'm taking adding task sequence variables, application install steps, driver steps, etc etc... I'd very much like to make tools to make some task sequence creation steps easier and I don't want to have to learn C# to do it. The information transmitted is intended only for the person or entity to which it is addressed and may contain CONFIDENTIAL material. If you receive this material/information in error, please contact the sender and delete or destroy the material/information. The information transmitted is intended only for the person or entity to which it is addressed and may contain CONFIDENTIAL material. If you receive this material/information in error, please contact the sender and delete or destroy the material/information. The information transmitted is intended only for the person or entity to which it is addressed and may contain CONFIDENTIAL material. If you receive this material/information in error, please contact the sender and delete or destroy the material/information.
