diff --git a/backend.py b/backend.py
index ccca45a..08863b4 100644
--- a/backend.py
+++ b/backend.py
@@ -2235,49 +2235,47 @@ def chroot_and_repair_grub(mount_point: str, target_disk: str,
             else:
                 grub_dir_name = "grub"
             
-            # 尝试多种可能的路径（处理独立 /boot 分区的情况）
-            possible_grubenv_paths = [
-                grubenv_path,  # 标准路径
-                os.path.join(mount_point, "boot", grub_dir_name, "grubenv"),
-                os.path.join(mount_point, "boot", "grub2", "grubenv"),
-                os.path.join(mount_point, "boot", "grub", "grubenv"),
-                os.path.join(mount_point, grub_dir_name, "grubenv"),
-                os.path.join(mount_point, "grub2", "grubenv"),
-                os.path.join(mount_point, "grub", "grubenv"),
+            # 首先确保首选目录存在（通过主机直接创建）
+            preferred_dir = os.path.dirname(grubenv_path)  # 正确路径的目录
+            try:
+                os.makedirs(preferred_dir, exist_ok=True)
+                log_info(f"✓ 确保目录存在: {preferred_dir}")
+            except Exception as e:
+                log_warning(f"创建目录失败: {e}")
+            
+            # 尝试多种可能的路径，检查是否已有 grubenv 在错误位置
+            possible_wrong_paths = [
+                os.path.join(mount_point, "boot", "grub" if grub_dir_name == "grub2" else "grub2", "grubenv"),
+                os.path.join(mount_point, "grub" if grub_dir_name == "grub2" else "grub2", "grubenv"),
             ]
             
-            for test_path in possible_grubenv_paths:
-                if os.path.exists(test_path):
-                    log_info(f"✓ 发现 grubenv 已存在于: {test_path}")
-                    grubenv_path = test_path
+            wrong_path_found = None
+            for wrong_path in possible_wrong_paths:
+                if os.path.exists(wrong_path):
+                    wrong_path_found = wrong_path
+                    log_info(f"发现 grubenv 在错误位置: {wrong_path}")
                     break
-            else:
-                # 没有找到现有文件，尝试创建
-                # 首先确保首选目录存在（通过主机直接创建）
-                preferred_dir = os.path.join(mount_point, "boot", grub_dir_name)
+            
+            # 如果找到错误位置的 grubenv，复制到正确位置
+            if wrong_path_found:
                 try:
-                    os.makedirs(preferred_dir, exist_ok=True)
-                    log_info(f"✓ 确保目录存在: {preferred_dir}")
+                    import shutil
+                    shutil.copy2(wrong_path_found, grubenv_path)
+                    log_success(f"✓ 复制 grubenv 到正确位置: {grubenv_path}")
                 except Exception as e:
-                    log_warning(f"创建目录失败: {e}")
-                
-                for test_path in possible_grubenv_paths:
-                    try:
-                        dir_path = os.path.dirname(test_path)
-                        os.makedirs(dir_path, exist_ok=True)
-                        # 创建一个空的 grubenv 文件（包含必要的头部）
-                        with open(test_path, 'w') as f:
-                            f.write("# GRUB Environment Block\n")
-                            f.write("saved_entry=\n")
-                            f.write("#" * 1024 + "\n")  # 填充到至少1KB
-                        log_success(f"✓ 手动创建 grubenv 文件成功: {test_path}")
-                        grubenv_path = test_path
-                        break
-                    except Exception as e:
-                        log_debug(f"尝试创建 {test_path} 失败: {e}")
-                        continue
-                else:
-                    log_warning(f"所有路径创建 grubenv 文件均失败")
+                    log_warning(f"复制失败: {e}")
+            
+            # 如果仍未创建成功，尝试直接创建
+            if not os.path.exists(grubenv_path):
+                try:
+                    # 创建一个空的 grubenv 文件（包含必要的头部）
+                    with open(grubenv_path, 'w') as f:
+                        f.write("# GRUB Environment Block\n")
+                        f.write("saved_entry=\n")
+                        f.write("#" * 1024 + "\n")  # 填充到至少1KB
+                    log_success(f"✓ 手动创建 grubenv 文件成功: {grubenv_path}")
+                except Exception as e:
+                    log_warning(f"创建 grubenv 文件失败: {e}")
     
     # 执行配置更新
     success, stdout, stderr = run_command(