Merge pull request #12280 from RudiMT/bugfix20210302/hyperv-enhanced-sessionmode-crash-2012R2

HyperV enhanced sessionmode crash on Windows Server 2012R2

plugins/providers/hyperv/driver.rb

@@ -1,4 +1,5 @@
 require "json"
+require "log4r"
 
 require "vagrant/util/powershell"
 
@@ -26,6 +27,7 @@ module VagrantPlugins
 
       def initialize(id)
         @vm_id = id
+        @logger = Log4r::Logger.new("vagrant::hyperv::driver")
       end
 
       # @return [Boolean] Supports VMCX
@@ -294,7 +296,10 @@ module VagrantPlugins
       # @param [String] enhanced session transport type of the VM
       # @return [nil]
       def set_enhanced_session_transport_type(transport_type)
-        execute(:set_enhanced_session_transport_type, VmID: vm_id, type: transport_type)
+        result = execute(:set_enhanced_session_transport_type, VmID: vm_id, type: transport_type)
+        if !result.nil?
+          @logger.debug("EnhancedSessionTransportType is not supported by this version of hyperv, ignoring")
+        end
       end
 
       protected

plugins/providers/hyperv/scripts/set_enhanced_session_transport_type.ps1

@@ -17,7 +17,16 @@ try {
 }
 
 try {
+    # HyperV 1.1 (Windows Server 2012R2) crashes on this call. Vagrantfiles before 2.2.10 do break without skipping this.
+    $present = Get-Command Hyper-V\Set-VM -ParameterName EnhancedSessionTransportType -ErrorAction SilentlyContinue
+    if($present) {
         Hyper-V\Set-VM -VM $VM -EnhancedSessionTransportType $Type
+    }else{
+        $message = @{
+            "EnhancedSessionTransportTypeSupportPresent"=$false;
+            } | ConvertTo-Json
+        Write-OutputMessage $message
+    }
 } catch {
     Write-ErrorMessage "Failed to assign EnhancedSessionTransportType to ${Type}:${PSItem}"
     exit 1