Do not restart after install, instead stop and restart the runtime. Also signin the admin user after install.

src/Umbraco.Web.BackOffice/Extensions/LinkGeneratorExtensions.cs

@@ -0,0 +1,25 @@
+using Microsoft.AspNetCore.Routing;
+using Umbraco.Cms.Web.BackOffice.Install;
+
+namespace Umbraco.Extensions
+{
+    public static class BackofficeLinkGeneratorExtensions
+    {
+        /// <summary>
+        /// Returns the URL for the installer
+        /// </summary>
+        public static string GetInstallerUrl(this LinkGenerator linkGenerator)
+            => linkGenerator.GetPathByAction(nameof(InstallController.Index), ControllerExtensions.GetControllerName<InstallController>(), new { area = Cms.Core.Constants.Web.Mvc.InstallArea });
+
+        /// <summary>
+        /// Returns the URL for the installer api
+        /// </summary>
+        public static string GetInstallerApiUrl(this LinkGenerator linkGenerator)
+            => linkGenerator.GetPathByAction(
+                nameof(InstallApiController.GetSetup),
+                ControllerExtensions.GetControllerName<InstallApiController>(),
+                new { area = Cms.Core.Constants.Web.Mvc.InstallArea }).TrimEnd(nameof(InstallApiController.GetSetup));
+
+
+    }
+}