#requires -version 3.0
function Get-OSinfoFromSCCM
{
<#
.SYNOPSIS
Gets the Operating System Info from the Remote Machine or SCCM Server
.DESCRIPTION
Retrieves the Operating System Info from the Remote Machine if it is online. Queries SCCM Server if Remote machine is offline
One can use the -QuerySCCMOnly switch to force it to fetch the details from SCCM Server only.
Queries Win32_OperatingSystem Class on Remote Machine and as this class is stored as part of the Hardware Inventory in
SMS_G_System_OPERATING_SYSTEM class on SCCM Server.
.EXAMPLE
Get-OSinfoFromSCCM -ComputerName dexterdc
PSComputerName : dexterdc
ComputerName : dexterdc
OS : Microsoft Windows Server 2012 R2 Datacenter Preview
ServicePack :
LastBootupTime : 5/23/2014 6:06:05 AM
InstallDate : 1/18/2014 3:29:37 PM
OSVersion : 6.3.9431
SystemDirectory : C:\Windows\system32
If the Machine DexterDC is online then the Script first tries to connect the Remote machine using WMI.
Note if the SCCM Server is not specified then it won' query it.
The Property PSComputerName tells where the information is being fetched from.
.EXAMPLE
Get-OSinfoFromSCCM -ComputerName dexterdc -SCCMServer DexSCCM
PSComputerName : dexterdc
ComputerName : dexterdc
OS : Microsoft Windows Server 2012 R2 Datacenter Preview
ServicePack :
LastBootupTime : 5/23/2014 6:06:05 AM
InstallDate : 1/18/2014 3:29:37 PM
OSVersion : 6.3.9431
SystemDirectory : C:\Windows\system32
Just specifying SCCM Server won't make it query the SCCM Server as evident from the PSComputerName property.
To explicitly get the info from SCCM Server use the Switch -QuerySCCMOnly (Next examle).
.EXAMPLE
Get-OSinfoFromSCCM -ComputerName dexterdc -SCCMServer DexSCCM -QuerySCCMOnly
PSComputerName : DexSCCM
ComputerName : dexterdc
OS : Microsoft Windows Server 2012 R2 Datacenter Preview
ServicePack :
LastBootupTime : 5/22/2014 4:24:50 PM
InstallDate : 1/18/2014 8:59:37 PM
OSVersion : 6.3.9431
SystemDirectory : C:\Windows\system32
Note the Property PSComputerName points to SCCM Server which means the Data is got back from SCCM Server.
.INPUTS
System.String[]
.OUTPUTS
PSObject[]
.NOTES
Author - DexterPOSH
Blog Url - http://dexterposh.blogspot.in/2014/05/powershell-sccm-2012-tip-get-os.html
#>
[CmdletBinding()]
[OutputType([PSObject[]])]
Param
(
# Param1 help description
[Parameter(Mandatory,
ValuefromPipeline,
ValueFromPipelineByPropertyName)]
[string[]]$ComputerName,
#specify the SCCMServer having SMS Namespace provider installed for the site. Default is the local machine.
[Parameter(Mandatory=$false)]
[Alias("SMSProvider")]
[String]$SCCMServer,
#Specify this switch to try and query the Remote Machine before querying SCCM Server for the Info
[Switch]$QuerySCCMOnly
)
BEGIN
{
Write-Verbose -Message "[BEGIN]"
#Check if the SCCM Server supplied ..then only open CIM Session to it
if ($PSBoundParameters.ContainsKey("SCCMServer"))
{
Write-Verbose -Message "SCCM Server was supplied as an argument ...trying to open a CIM Session"
#region open a CIM session
$CIMSessionParams = @{COmputerName = $SCCMServer;ErrorAction = 'Stop'}
try
{
If ((Test-WSMan -ComputerName $SCCMServer -ErrorAction SilentlyContinue).ProductVersion -match 'Stack: 3.0')
{
Write-Verbose -Message "[BEGIN] WSMAN is responsive"
$CimSession = New-CimSession @CIMSessionParams
$CimProtocol = $CimSession.protocol
Write-Verbose -Message "[BEGIN] [$CimProtocol] CIM SESSION - Opened"
}
else
{
Write-Verbose -Message "[BEGIN] Attempting to connect with protocol: DCOM"
$CIMSessionParams.SessionOption = New-CimSessionOption -Protocol Dcom
$CimSession = New-CimSession @CIMSessionParams
$CimProtocol = $CimSession.protocol
Write-Verbose -Message "[BEGIN] [$CimProtocol] CIM SESSION - Opened"
}
#endregion open a CIM session
#region create the Hash to be used later for CIM queries
$sccmProvider = Get-CimInstance -query "select * from SMS_ProviderLocation where ProviderForLocalSite = true" -Namespace "root\sms" -CimSession $CimSession -ErrorAction Stop
# Split up the namespace path
$Splits = $sccmProvider.NamespacePath -split "\\", 4
Write-Verbose "[BEGIN] Provider is located on $($sccmProvider.Machine) in namespace $($splits[3])"
# Create a new hash to be passed on later
$hash= @{"CimSession"=$CimSession;"NameSpace"=$Splits[3];"ErrorAction"="Stop"}
#endregion create the Hash to be used later for CIM queries
}
catch
{
Write-Warning "[BEGIN] Something went wrong"
throw $_.Exception
}
}
}
PROCESS
{
foreach ($computer in $ComputerName )
{
try
{
if ($QuerySCCMOnly)
{
#If we want to only query SCCM then throw an exception here and control goes to catch block and SCCM Server will be queried
throw "Deliberate Exception"
}
#Check if machine is online
Test-Connection -ComputerName $ComputerName -Count 2 -Quiet -ErrorAction stop | Out-Null
#using Get-WMIObject as the CIM* cmdlets require WSMAN stack 3.0 to be running on the remote machine
$OSInfo = Get-WmiObject -Class Win32_OperatingSystem -ComputerName $computer -ErrorAction Stop
Write-Verbose -Message "[PROCESS] Querying $computer for OSInfo"
[pscustomobject]@{
PSComputerName = $computer; #this property tells where the CIM data came from - e.g $Computer
ComputerName = $computer;
OS = $OSInfo.caption;
ServicePack = $OSInfo.CSDVersion;
LastBootupTime=$OSInfo.ConvertToDateTime($OSInfo.LastBootUpTime);
InstallDate = $OSInfo.ConvertToDateTime($OSInfo.InstallDate);
OSVersion = $OSInfo.Version;
SystemDirectory = $OSInfo.SystemDirectory;
}
} #end try
catch
{
if ($CimSession)
{
#region machine is offline or WMI access denied then get the OSInfo from SCCM Database
$Query = "Select Version,CSDVersion,SystemDirectory,Installdate,LastBootuptime,installdate,caption,Description from SMS_G_System_OPERATING_SYSTEM JOIN SMS_R_System ON SMS_R_System.ResourceID = SMS_G_System_OPERATING_SYSTEM.ResourceID where SMS_R_System.NetbiosName='$computer'"
try
{
Write-Verbose -Message "[PROCESS] Querying $SCCMServer for OSInfo"
$OSInfo = Get-CimInstance -Query $Query @hash
[pscustomobject]@{
PSComputerName=$SCCMServer; #this property tells where the CIM data came from - e.g SCCM Server
ComputerName=$computer;
OS = $OSInfo.caption;
ServicePack = $OSInfo.CSDVersion;
LastBootupTime=$OSInfo.LastBootUpTime;
InstallDate = $OSInfo.InstallDate;
OSVersion = $OSInfo.Version;
SystemDirectory = $OSInfo.SystemDirectory;
}
}
catch
{
Write-Warning -Message "[PROCESS} Something went wrong while querying $SCCMServer"
throw $Error[0].Exception
}
#endregion machine is offline get the OSInfo from SCCM Database
}
else
{
Write-Warning -Message "[PROCESS} Something went wrong"
throw $_.exception
}
}
} #end foreach ($computer in $ComputerName )
} #end Process
END
{
if ($CimSession)
{
Write-Verbose -Message "[END] Removing the CIM Session"
Remove-CimSession -CimSession $CimSession
}
Write-Verbose -Message "[END]"
}
}