diff --git a/__pycache__/backend.cpython-39.pyc b/__pycache__/backend.cpython-39.pyc
index 117495d..f63e746 100644
Binary files a/__pycache__/backend.cpython-39.pyc and b/__pycache__/backend.cpython-39.pyc differ
diff --git a/__pycache__/frontend.cpython-39.pyc b/__pycache__/frontend.cpython-39.pyc
new file mode 100644
index 0000000..8ea6667
Binary files /dev/null and b/__pycache__/frontend.cpython-39.pyc differ
diff --git a/backend.py b/backend.py
index 77f7389..893c8f4 100644
--- a/backend.py
+++ b/backend.py
@@ -1232,7 +1232,8 @@ def chroot_and_repair_grub(mount_point: str, target_disk: str,
                            is_uefi: bool = False, distro_type: str = "unknown",
                            install_hybrid: bool = False,
                            use_fallback: bool = True,
-                           efi_bootloader_id: str = "GRUB") -> Tuple[bool, str]:
+                           efi_bootloader_id: str = "GRUB",
+                           has_separate_boot: bool = False) -> Tuple[bool, str]:
     """
     Chroot到目标系统并执行GRUB修复命令。
     支持多种安装模式、架构、EFI fallback、Secure Boot 等。
@@ -1245,6 +1246,7 @@ def chroot_and_repair_grub(mount_point: str, target_disk: str,
         install_hybrid: 是否同时安装 BIOS 和 EFI 模式（混合启动）
         use_fallback: 是否安装 EFI fallback 文件
         efi_bootloader_id: EFI 启动项名称
+        has_separate_boot: 是否有独立的 /boot 分区
     """
     global _grub_install_cmd, _grub_mkconfig_cmd
     
@@ -1266,6 +1268,12 @@ def chroot_and_repair_grub(mount_point: str, target_disk: str,
     log_info(f"使用 grub-install: {_grub_install_cmd}")
     log_info(f"使用 grub-mkconfig: {_grub_mkconfig_cmd}")
     
+    # 检查是否有独立的 /boot 分区
+    boot_mount_point = os.path.join(mount_point, "boot")
+    if os.path.ismount(boot_mount_point):
+        has_separate_boot = True
+        log_info("检测到独立的 /boot 分区")
+    
     chroot_cmd_prefix = ["sudo", "chroot", mount_point]
     
     # 检测 Live 环境
@@ -1401,10 +1409,17 @@ def chroot_and_repair_grub(mount_point: str, target_disk: str,
             _grub_install_cmd,
             "--target=i386-pc",
             "--recheck",
-            "--force",
-            target_disk
+            "--force"
         ]
         
+        # 如果有独立的 /boot 分区，需要指定 --boot-directory
+        # 这样 GRUB 才能在启动时正确找到配置文件
+        if has_separate_boot:
+            log_info("独立 /boot 分区: 添加 --boot-directory=/boot 参数")
+            bios_cmd.append("--boot-directory=/boot")
+        
+        bios_cmd.append(target_disk)
+        
         success, stdout, stderr = run_command(
             bios_cmd,
             f"安装 BIOS GRUB 到 {target_disk}",
diff --git a/frontend.py b/frontend.py
index cb8653d..d6c1c53 100644
--- a/frontend.py
+++ b/frontend.py
@@ -510,6 +510,9 @@ Secure Boot: {'已启用' if self.system_info.get('sb_enabled') else '已禁用/
             self.log_message(f"EFI Fallback: {'是' if use_fallback else '否'}", "info")
             self.log_message(f"启动项名称: {bootloader_id}", "info")
             
+            # 检查是否有独立的 /boot 分区
+            has_separate_boot = self.selected_boot_partition_info is not None
+            
             repair_ok, repair_err = backend.chroot_and_repair_grub(
                 self.mount_point,
                 target_disk_path or "",  # UEFI 模式下可能为空
@@ -517,7 +520,8 @@ Secure Boot: {'已启用' if self.system_info.get('sb_enabled') else '已禁用/
                 distro_type,
                 install_hybrid=install_hybrid,
                 use_fallback=use_fallback,
-                efi_bootloader_id=bootloader_id
+                efi_bootloader_id=bootloader_id,
+                has_separate_boot=has_separate_boot
             )
             
             if not repair_ok: