SafeOS requirements (ws2016 or w10) (#460)

Author: marcvaneijk

Deployment/asdk-installer.ps1

@@ -18,6 +18,7 @@ The Azure Stack Development Kit installer UI provides a UI with the following fe
 To install the Azure Stack Development Kit you require
 
 - A physical server that meets the requirements
+- The SafeOS must be running Windows Server 2016 or Windows 10
 - The latest cloudbuilder.vhdx
 - The installer UI script
 
@@ -28,7 +29,7 @@ The Azure Stack Development Kit installer UI script is based on PowerShell and t
 
 #region Text
 $Text_Generic = @{}
-$Text_Generic.Version = "1.0.11"
+$Text_Generic.Version = "1.0.12"
 $Text_Generic.Password_NotMatch = "Passwords do not match"
 $Text_Generic.Regex_Fqdn = "<yourtenant.onmicrosoft.com> can only contain A-Z, a-z, 0-9, dots and a hyphen"
 $Text_Generic.Regex_Computername = "Computername must be 15 characters or less and can only contain A-Z, a-z, 0-9 and a hyphen"
@@ -53,6 +54,7 @@ $Text_SafeOS.NetConfig_Title = "Azure Stack host IP configuration"
 $Text_SafeOS.Job_Title = "Preparing the environment"
 $Text_SafeOS.Summary_Content = "The cloudbuilder vhdx is prepared succesfully. Please reboot. The server will boot from the CloudBuilder VHD and you can start the installation after signing in as the administrator."
 $Text_SafeOS.Mode_RightLink = "https://docs.microsoft.com/en-us/azure/azure-stack/azure-stack-run-powershell-script"
+$Text_SafeOS.OS_Version = "The SafeOS must be running Windows Server 2016 or Windows 10 to use the ASDK Installer. Consider upgrading the SafeOS or use PowerShell to install the ASDK https://docs.microsoft.com/en-us/azure/azure-stack/asdk/asdk-deploy-powershell"
 
 $Text_Install = @{}
 $Text_Install.Mode_Title = "Installation"
@@ -1842,6 +1844,15 @@ Function F_Initialize {
 
     # Booted in the SafeOS
     else {
+
+        # Verify SafeOS is Windows 2016 or Windows 10
+        if([int](Get-CimInstance -ClassName Win32_OperatingSystem).version.split('.')[0] -lt 10){
+            Write-Host ""
+            Write-Error $Text_SafeOS.OS_Version
+            Start-Sleep -seconds 3
+            Break
+        }
+
         $Script:Initialized="SafeOS"
         $syncHash.Control_Header_Tbl_Title.Text = $Text_SafeOS.Mode_Title
         $syncHash.Control_Mode_Tbl_LeftTitle.Text = $Text_SafeOS.Mode_LeftTitle