diff --git a/BootMenu.cs b/BootMenu.cs
new file mode 100644
index 0000000..47b5453
--- /dev/null
+++ b/BootMenu.cs
@@ -0,0 +1,157 @@
+using System;
+using Sys = Cosmos.System;
+using Cosmos.HAL;
+using Cosmos.Core;
+using System.Threading;
+
+namespace CMLeonOS
+{
+    public enum BootMenuAction
+    {
+        NormalBoot,
+        Reboot,
+        Shutdown
+    }
+
+    internal static class BootMenu
+    {
+        private static void PrintOption(string text, bool selected)
+        {
+            Console.SetCursorPosition(1, Console.GetCursorPosition().Top);
+
+            Console.BackgroundColor = selected ? ConsoleColor.White : ConsoleColor.Black;
+            Console.ForegroundColor = selected ? ConsoleColor.Black : ConsoleColor.White;
+
+            Console.WriteLine(text);
+        }
+
+        private static void Render(int selIdx, int remainingTime)
+        {
+            Console.BackgroundColor = ConsoleColor.Black;
+            Console.ForegroundColor = ConsoleColor.Cyan;
+
+            Console.SetCursorPosition(0, 0);
+
+            uint mem = Cosmos.Core.CPU.GetAmountOfRAM();
+            Console.WriteLine($"{Version.DisplayVersion} [{mem} MB memory]");
+            // 这里老显示 unknown，谁知道为啥
+            // Console.WriteLine($"Git Commit: {Version.GitCommit}");
+            Console.WriteLine($"Build Time: {GetBuildTime()}");
+            Console.WriteLine();
+            Console.WriteLine($"Auto-select in {remainingTime} seconds...");
+            Console.WriteLine();
+            Console.WriteLine("Select an option:");
+            Console.WriteLine();
+
+            PrintOption("Normal Boot", selIdx == 0);
+            PrintOption("Reboot", selIdx == 1);
+            PrintOption("Shutdown", selIdx == 2);
+        }
+
+        private static BootMenuAction Confirm(int selIdx)
+        {
+            Console.BackgroundColor = ConsoleColor.Black;
+            Console.ForegroundColor = ConsoleColor.White;
+
+            Console.Clear();
+
+            Console.SetCursorPosition(0, 0);
+
+            Console.CursorVisible = true;
+
+            switch (selIdx)
+            {
+                case 0:
+                    return BootMenuAction.NormalBoot;
+                case 1:
+                    Sys.Power.Reboot();
+                    return BootMenuAction.Reboot;
+                case 2:
+                    Sys.Power.Shutdown();
+                    return BootMenuAction.Shutdown;
+                default:
+                    return BootMenuAction.NormalBoot;
+            }
+        }
+
+        public static BootMenuAction Show()
+        {
+            Console.BackgroundColor = ConsoleColor.Black;
+            Console.ForegroundColor = ConsoleColor.White;
+
+            Console.Clear();
+
+            Console.CursorVisible = false;
+
+            int selIdx = 0;
+            int remainingTime = 10;
+            int counter = 0;
+
+            while (true)
+            {
+                Render(selIdx, remainingTime);
+
+                if (Sys.KeyboardManager.TryReadKey(out var key))
+                {
+                    if (key.Key == Sys.ConsoleKeyEx.Enter)
+                    {
+                        return Confirm(selIdx);
+                    }
+                    else if (key.Key == Sys.ConsoleKeyEx.DownArrow)
+                    {
+                        selIdx++;
+                        remainingTime = 10;
+                        counter = 0;
+                    }
+                    else if (key.Key == Sys.ConsoleKeyEx.UpArrow)
+                    {
+                        selIdx--;
+                        remainingTime = 10;
+                        counter = 0;
+                    }
+                }
+                else
+                {
+                    Thread.Sleep(100);
+                    counter++;
+
+                    if (counter >= 10)
+                    {
+                        remainingTime--;
+                        counter = 0;
+
+                        if (remainingTime <= 0)
+                        {
+                            return Confirm(selIdx);
+                        }
+                    }
+                }
+
+                if (selIdx < 0)
+                {
+                    selIdx = 2;
+                }
+
+                if (selIdx > 2)
+                {
+                    selIdx = 0;
+                }
+            }
+        }
+
+        private static string GetBuildTime()
+        {
+            try
+            {
+                if (Kernel.buildTimeFile != null && Kernel.buildTimeFile.Length > 0)
+                {
+                    return System.Text.Encoding.UTF8.GetString(Kernel.buildTimeFile);
+                }
+            }
+            catch
+            {
+            }
+            return "Unknown";
+        }
+    }
+}
diff --git a/BuildTime.txt b/BuildTime.txt
index c0ca97e..1ca9da4 100644
--- a/BuildTime.txt
+++ b/BuildTime.txt
@@ -1 +1 @@
-2026-02-13 13:54:14
\ No newline at end of file
+2026-02-16 21:00:38
\ No newline at end of file
diff --git a/GitCommit.txt b/GitCommit.txt
index f21a18f..4bdfb10 100644
--- a/GitCommit.txt
+++ b/GitCommit.txt
@@ -1 +1 @@
-82ecd84
\ No newline at end of file
+f3226eb
\ No newline at end of file
diff --git a/Kernel.cs b/Kernel.cs
index 29436a9..d37f653 100644
--- a/Kernel.cs
+++ b/Kernel.cs
@@ -55,24 +55,22 @@ namespace CMLeonOS
         
         protected override void BeforeRun()
         {
-            // 我认了，我用默认字体
-            // try
-            // {
-            //     PCScreenFont screenFont = PCScreenFont.LoadFont(file);
-            //     VGAScreen.SetFont(screenFont.CreateVGAFont(), screenFont.Height);
-            // }
-            // catch (Exception ex)
-            // {
-            // 我不认，我试着转换成Base64
-                // 我认了
-                // PCScreenFont defaultFont = PCScreenFont.Default;
-                // VGAScreen.SetFont(defaultFont.CreateVGAFont(), defaultFont.Height);
-                // Console.WriteLine($"{defaultFont.Height}");
-                // Console.WriteLine($"{defaultFont.Width}");
-                // VGAScreen.SetGraphicsMode(VGADriver.ScreenSize.Size720x480, ColorDepth.ColorDepth32);
-            //     Console.WriteLine($"Error loading font: {ex.Message}");
-            // }
+            BootMenuAction bootAction = BootMenu.Show();
 
+            switch (bootAction)
+            {
+                case BootMenuAction.Reboot:
+                    Sys.Power.Reboot();
+                    break;
+                case BootMenuAction.Shutdown:
+                    Sys.Power.Shutdown();
+                    break;
+                case BootMenuAction.NormalBoot:
+                default:
+                    break;
+            }
+
+            Console.Clear();
             Console.WriteLine("Kernel load done!");
             Console.WriteLine(@"-------------------------------------------------");
             Console.WriteLine(@"   ____ __  __ _                      ___  ____  ");