Merge pull request #773 from Azure/issue769

Issue 769

Author: sihbher

workload/scripts/Set-SessionHostConfiguration.ps1

@@ -32,7 +32,7 @@ Param(
         $NvidiaVmSize,
 
         [parameter(Mandatory)]
-        [boolean]
+        [string]
         $ExtendOsDisk
 
         # [parameter(Mandatory)]
@@ -437,7 +437,7 @@ try {
 
         # Resize OS Disk
 
-        if ($ExtendOsDisk -eq $true) {
+        if ($ExtendOsDisk -eq 'true') {
                 Write-Log -message "Resizing OS Disk"
                 $driveLetter = $env:SystemDrive.Substring(0, 1)
                 $size = Get-PartitionSupportedSize -DriveLetter $driveLetter