diff --git a/tests/linker/ios/link all/LinkAllTest.cs b/tests/linker/ios/link all/LinkAllTest.cs
index ee1e30a072b9..c887fc64d7da 100644
--- a/tests/linker/ios/link all/LinkAllTest.cs	
+++ b/tests/linker/ios/link all/LinkAllTest.cs	
@@ -151,6 +151,8 @@ public enum CertificateProblem : long {
 			CertTRUSTEFAIL = 0x800B010B,
 		}
 
+#if !NET
+		// ICertificatePolicy has been removed from .NET 5+
 		class TestPolicy : ICertificatePolicy {
 
 			const int RecoverableTrustFailure = 5; // SecTrustResult
@@ -202,6 +204,7 @@ public void TrustUsingOldPolicy ()
 				ServicePointManager.CertificatePolicy = old;
 			}
 		}
+#endif
 		
 		[Test]
 		public void DetectPlatform ()
@@ -424,6 +427,7 @@ public void AssemblyReferences_16213 ()
 		}
 
 #if !__WATCHOS__
+#if !NET // OpenTK-1.0.dll isn't supported in .NET yet
 		[Test]
 		public void OpenTk10_Preserved ()
 		{
@@ -442,6 +446,7 @@ public void OpenTk10_Preserved ()
 			core = Helper.GetType ("OpenTK.Graphics.ES20.GL/Core, OpenTK-1.0", false);
 			Assert.NotNull (core, "ES20/Core");
 		}
+#endif // !NET
 #endif // !__WATCHOS__
 
 		[Test]
diff --git a/tests/linker/ios/link all/dotnet/iOS/link all.csproj b/tests/linker/ios/link all/dotnet/iOS/link all.csproj
new file mode 100644
index 000000000000..bdda8c051359
--- /dev/null
+++ b/tests/linker/ios/link all/dotnet/iOS/link all.csproj	
@@ -0,0 +1,101 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project Sdk="Microsoft.iOS.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net5.0</TargetFramework>
+    <RuntimeIdentifier>ios-x64</RuntimeIdentifier>
+    <OutputType>Exe</OutputType>
+    <DefineConstants>NET</DefineConstants>
+    <LangVersion>latest</LangVersion>
+    <RootNamespace>linkall</RootNamespace>
+    <AssemblyName>link all</AssemblyName>
+    <MtouchLink>Full</MtouchLink>
+    <AssetTargetFallback>xamarinios10;$(AssetTargetFallback)</AssetTargetFallback>
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
+    <MtouchExtraArgs>--optimize=all,-remove-dynamic-registrar,-force-rejected-types-removal</MtouchExtraArgs>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Reference Include="support">
+      <HintPath>../../support.dll</HintPath>
+    </Reference>
+
+    <PackageReference Include="System.ComponentModel.Composition" Version="4.7.0" />
+    <PackageReference Include="NUnitLite" Version="3.12.0" />
+    <PackageReference Include="MonoTouch.Dialog" Version="2.0.0-pre1" />
+    <ProjectReference Include="..\..\..\..\..\..\external\Touch.Unit\Touch.Client\dotnet\iOS\Touch.Client-iOS.dotnet.csproj" />
+    <!-- MonoTouch.Dialog references System.Json, which isn't shipped with .NET5, so reference the NuGet instead -->
+    <PackageReference Include="System.Json" Version="4.7.1" />
+    <!-- The linker resolves some assembly references too eagerly, and fails when it can't find them, so work around this by referencing the missing assemblies-->
+    <!-- ref: https://github.com/mono/linker/issues/1139 -->
+    <PackageReference Include="System.Security.Permissions" Version="5.0.0-preview.2.20160.6" />
+    <PackageReference Include="System.Threading.AccessControl" Version="5.0.0-preview.2.20160.6" />
+    <PackageReference Include="System.CodeDom" Version="5.0.0-preview.2.20160.6" />
+    <PackageReference Include="System.Configuration.ConfigurationManager" Version="5.0.0-preview.2.20160.6" />
+    <PackageReference Include="System.Diagnostics.PerformanceCounter" Version="5.0.0-preview.2.20160.6" />
+    <PackageReference Include="System.Diagnostics.EventLog" Version="5.0.0-preview.2.20160.6" />
+    <PackageReference Include="System.IO.Ports" Version="5.0.0-preview.2.20160.6" />
+    <PackageReference Include="System.Data.SqlClient" Version="5.0.0-alpha1.19523.8" />
+
+    <ProjectReference Include="..\..\..\..\..\BundledResources\dotnet\iOS\BundledResources.csproj" />
+    <ProjectReference Include="..\..\..\..\..\bindings-test\dotnet\iOS\bindings-test.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Include="..\..\Info.plist">
+      <LogicalName>Info.plist</LogicalName>
+    </None>
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="..\..\Main.cs" />
+    <Compile Include="..\..\AppDelegate.cs" />
+    <Compile Include="..\..\LinkAllTest.cs" />
+    <Compile Include="..\..\ClassLayoutTest.cs" />
+    <Compile Include="..\..\StructLayoutTest.cs" />
+    <Compile Include="..\..\XmlSerializationTest.cs" />
+    <Compile Include="..\..\AttributeTest.cs" />
+    <Compile Include="..\..\InterfacesTest.cs" />
+    <Compile Include="..\..\DataContractTest.cs" />
+    <Compile Include="..\..\..\..\BaseOptimizeGeneratedCodeTest.cs" />
+    <Compile Include="..\..\..\link sdk\OptimizeGeneratedCodeTest.cs">
+      <Link>OptimizeGeneratedCodeTest.cs</Link>
+    </Compile>
+    <Compile Include="..\..\InternalsTest.cs" />
+    <Compile Include="..\..\LinqExpressionTest.cs" />
+    <Compile Include="..\..\CalendarTest.cs" />
+    <Compile Include="..\..\PreserveTest.cs" />
+    <Compile Include="..\..\MEFTests.cs" />
+    <Compile Include="..\..\SealerTest.cs" />
+    <Compile Include="..\..\..\link sdk\ReflectionTest.cs">
+      <Link>ReflectionTest.cs</Link>
+    </Compile>
+    <Compile Include="..\..\SerializationTest.cs" />
+    <Compile Include="..\..\..\..\ILReader.cs" />
+    <Compile Include="..\..\..\..\..\common\TestRuntime.cs">
+      <Link>TestRuntime.cs</Link>
+    </Compile>
+    <Compile Include="..\..\..\..\CommonLinkAllTest.cs">
+      <Link>CommonLinkAllTest.cs</Link>
+    </Compile>
+    <Compile Include="..\..\..\..\CommonLinkAnyTest.cs">
+      <Link>CommonLinkAnyTest.cs</Link>
+    </Compile>
+    <Compile Include="..\..\..\..\..\monotouch-test\System.Net.Http\NetworkResources.cs">
+      <Link>NetworkResources.cs</Link>
+    </Compile>
+  </ItemGroup>
+  <ItemGroup>
+    <InterfaceDefinition Include="..\..\LaunchScreen.storyboard" />
+  </ItemGroup>
+  <ItemGroup>
+    <ImageAsset Include="..\..\Assets.xcassets\AppIcons.appiconset\Contents.json" />
+    <ImageAsset Include="..\..\Assets.xcassets\AppIcons.appiconset\Icon-app-60%403x.png" />
+    <ImageAsset Include="..\..\Assets.xcassets\AppIcons.appiconset\icon-app-57.png" />
+    <ImageAsset Include="..\..\Assets.xcassets\AppIcons.appiconset\icon-app-57%402x.png" />
+    <ImageAsset Include="..\..\Assets.xcassets\AppIcons.appiconset\icon-app-60%402x.png" />
+    <ImageAsset Include="..\..\Assets.xcassets\AppIcons.appiconset\icon-app-72.png" />
+    <ImageAsset Include="..\..\Assets.xcassets\AppIcons.appiconset\icon-app-72%402x.png" />
+    <ImageAsset Include="..\..\Assets.xcassets\AppIcons.appiconset\icon-app-76.png" />
+    <ImageAsset Include="..\..\Assets.xcassets\AppIcons.appiconset\icon-app-76%402x.png" />
+    <ImageAsset Include="..\..\Assets.xcassets\AppIcons.appiconset\icon-app-83.5%402x.png" />
+  </ItemGroup>
+</Project>
diff --git a/tests/xharness/Harness.cs b/tests/xharness/Harness.cs
index 8187719950d9..e234cf42e32f 100644
--- a/tests/xharness/Harness.cs
+++ b/tests/xharness/Harness.cs
@@ -395,6 +395,7 @@ void AutoConfigureIOS ()
 			IOSTestProjects.Add (new iOSTestProject (Path.GetFullPath (Path.Combine (RootDirectory, "linker", "ios", "dont link", "dont link.csproj"))) { Configurations = new string [] { "Debug", "Release" } });
 			IOSTestProjects.Add (new iOSTestProject (Path.GetFullPath (Path.Combine (RootDirectory, "linker", "ios", "dont link", "dotnet", "iOS", "dont link.csproj"))) { Configurations = new string [] { "Debug", "Release" }, IsDotNetProject = true, SkipiOSVariation = false, SkiptvOSVariation = true, SkipwatchOSVariation = true, SkipTodayExtensionVariation = true, SkipDeviceVariations = true, SkipiOS32Variation = true });
 			IOSTestProjects.Add (new iOSTestProject (Path.GetFullPath (Path.Combine (RootDirectory, "linker", "ios", "link all", "link all.csproj"))) { Configurations = new string [] { "Debug", "Release" } });
+			IOSTestProjects.Add (new iOSTestProject (Path.GetFullPath (Path.Combine (RootDirectory, "linker", "ios", "link all", "dotnet", "iOS", "link all.csproj"))) { Configurations = new string [] { "Debug", "Release" }, IsDotNetProject = true, SkipiOSVariation = false, SkiptvOSVariation = true, SkipwatchOSVariation = true, SkipTodayExtensionVariation = true, SkipDeviceVariations = true, SkipiOS32Variation = true, Ignore = true });
 			IOSTestProjects.Add (new iOSTestProject (Path.GetFullPath (Path.Combine (RootDirectory, "linker", "ios", "link sdk", "link sdk.csproj"))) { Configurations = new string [] { "Debug", "Release" } });
 			IOSTestProjects.Add (new iOSTestProject (Path.GetFullPath (Path.Combine (RootDirectory, "linker", "ios", "link sdk", "dotnet", "iOS", "link sdk.csproj"))) { Configurations = new string [] { "Debug" /*, "Release" */ }, IsDotNetProject = true, SkipiOSVariation = false, SkiptvOSVariation = true, SkipwatchOSVariation = true, SkipTodayExtensionVariation = true, SkipDeviceVariations = true, SkipiOS32Variation = true });