15

backend.py

@@ -2137,20 +2137,32 @@ def chroot_and_repair_grub(mount_point: str, target_disk: str,
     log_step("更新 GRUB 配置文件")
     
     # 确定配置文件路径
+    # 根据发行版类型确定正确的 GRUB 目录名
+    if distro_type in ["centos", "rhel", "fedora", "rocky", "almalinux", "opensuse"]:
+        # RHEL 系使用 grub2
+        preferred_grub_dir = "grub2"
+        fallback_grub_dir = "grub"
+    else:
+        # Debian/Ubuntu/Arch 等使用 grub
+        preferred_grub_dir = "grub"
+        fallback_grub_dir = "grub2"
+    
     possible_config_paths = [
-        "/boot/grub/grub.cfg",
-        "/boot/grub2/grub.cfg",
+        f"/boot/{preferred_grub_dir}/grub.cfg",
+        f"/boot/{fallback_grub_dir}/grub.cfg",
     ]
     
     config_path = ""
     for cfg_path in possible_config_paths:
         full_path = os.path.join(mount_point, cfg_path.lstrip('/'))
+        # 优先检查目录是否存在，但也考虑发行版偏好
         if os.path.exists(os.path.dirname(full_path)):
             config_path = cfg_path
             break
     
+    # 如果没有找到，使用发行版偏好路径
     if not config_path:
-        config_path = "/boot/grub/grub.cfg"
+        config_path = f"/boot/{preferred_grub_dir}/grub.cfg"
     
     # 确定更新命令
     if distro_type in ["debian", "ubuntu"]: