I am working on a Powershell script that needs to change Configuration Item
rules and cannot figure out how to make these changes. The documentation is not
super helpful, but it appears the actual rules are stored as a big chunk of xml
data (like the application definitions). It looks like I should be able to get
the wmi object for the configuration item, deserialize the xml definition, make
my changes, reserialize, and reinject the xml. Unfortunately, I cannot figure
out how to reserialize the xml. With applications (per
http://andrewdcraig.wordpress.com/2013/01/31/configmgr-2012-change-application-source-path/),
there is a special serialization function in one of the admin console dlls,
but I cannot find an equivalent function for configuration items.
Does anyone have any ideas on how I would go about doing this properly? This is
what I have so far. The last step fails with an Invalid Digest Schema error.
$dcms = Get-CMConfigurationItem -Name "Current Firefox"
$dcmxml = [xml]($dcms | Get-CMConfigurationItemXMLDefinition)
#$rulever = $dcmxml.
$dcmDocs = $dcmxml.model.instances.document
foreach($doc in $dcmDocs)
{
if($doc.documentType -eq 0)
{
$doc.data.DesiredConfigurationDigest.Application.Rules.Rule.Expression.Operands.ConstantValue.Value
= "29.0"
}
}
$dcms.SDMPackageXML = $dcmxml.OuterXml.Replace("`n","`r`n")
Set-CMConfigurationItem -InputObject $dcms
Jesse Schauer
Windows Server Administrator II
University of Idaho ITS
