auto install gurb

backend.py

@@ -881,23 +881,116 @@ def detect_distro_type(mount_point: str) -> str:
         return "unknown"
 
 
-def _get_grub_package_install_cmd(distro_type: str) -> str:
+def _get_grub_packages(distro_type: str) -> Tuple[List[str], str]:
-    """获取安装 GRUB 包的命令提示"""
+    """
-    package_commands = {
+    获取安装 GRUB 包所需的包列表和包管理器命令。
-        "centos": "yum install grub2-tools grub2-pc",
+    返回: (包列表, 包管理器基命令)
-        "fedora": "dnf install grub2-tools grub2-pc",
+    """
-        "debian": "apt-get install grub-pc",
+    package_map = {
-        "ubuntu": "apt-get install grub-pc",
+        "centos": (["grub2-tools", "grub2-pc"], "yum install -y"),
-        "arch": "pacman -S grub",
+        "fedora": (["grub2-tools", "grub2-pc"], "dnf install -y"),
-        "opensuse": "zypper install grub2",
+        "rhel": (["grub2-tools", "grub2-pc"], "yum install -y"),
+        "rocky": (["grub2-tools", "grub2-pc"], "dnf install -y"),
+        "almalinux": (["grub2-tools", "grub2-pc"], "dnf install -y"),
+        "debian": (["grub-pc"], "apt-get install -y"),
+        "ubuntu": (["grub-pc"], "apt-get install -y"),
+        "arch": (["grub"], "pacman -S --noconfirm"),
+        "manjaro": (["grub"], "pacman -S --noconfirm"),
+        "opensuse": (["grub2"], "zypper install -y"),
+        "void": (["grub"], "xbps-install -y"),
+        "gentoo": (["sys-boot/grub"], "emerge"),
     }
-    return package_commands.get(distro_type, "安装 GRUB 包（请查阅发行版文档）")
+    return package_map.get(distro_type, (["grub"], "包管理器安装"))
+
+
+def _auto_install_grub(mount_point: str, distro_type: str) -> bool:
+    """
+    自动在 chroot 环境中安装 GRUB 包。
+    返回是否成功。
+    """
+    log_step("自动安装 GRUB 包", f"发行版: {distro_type}")
+    
+    packages, pkg_cmd = _get_grub_packages(distro_type)
+    
+    if not packages:
+        log_warning(f"未知的发行版 '{distro_type}'，无法自动安装 GRUB")
+        return False
+    
+    chroot_cmd_prefix = ["sudo", "chroot", mount_point]
+    
+    # 1. 首先检查网络连接（通过 ping）
+    log_info("检查网络连接...")
+    success, _, _ = run_command(
+        chroot_cmd_prefix + ["ping", "-c", "1", "8.8.8.8"],
+        "检查网络连接",
+        timeout=10
+    )
+    if not success:
+        # 尝试使用主机的网络配置
+        log_warning("chroot 环境无网络，尝试从 Live 环境复制 DNS 配置...")
+        
+        # 复制 /etc/resolv.conf
+        resolv_source = "/etc/resolv.conf"
+        resolv_target = os.path.join(mount_point, "etc/resolv.conf")
+        if os.path.exists(resolv_source):
+            try:
+                shutil.copy2(resolv_source, resolv_target)
+                log_info("已复制 DNS 配置")
+            except Exception as e:
+                log_warning(f"复制 DNS 配置失败: {e}")
+        
+        # 再次检查网络
+        success, _, _ = run_command(
+            chroot_cmd_prefix + ["ping", "-c", "1", "8.8.8.8"],
+            "再次检查网络连接",
+            timeout=10
+        )
+        if not success:
+            log_error("chroot 环境无法连接网络，无法自动安装 GRUB")
+            log_info("请手动安装 GRUB 包后再运行此工具")
+            return False
+    
+    log_success("网络连接正常")
+    
+    # 2. 更新包列表（某些发行版需要）
+    update_cmds = {
+        "debian": ["apt-get", "update"],
+        "ubuntu": ["apt-get", "update"],
+        "arch": ["pacman", "-Sy"],
+        "manjaro": ["pacman", "-Sy"],
+    }
+    
+    if distro_type in update_cmds:
+        log_info(f"更新 {distro_type} 包列表...")
+        run_command(
+            chroot_cmd_prefix + update_cmds[distro_type],
+            f"更新 {distro_type} 包列表",
+            timeout=120
+        )
+    
+    # 3. 安装 GRUB 包
+    log_info(f"安装 GRUB 包: {', '.join(packages)}")
+    
+    install_cmd = chroot_cmd_prefix + pkg_cmd.split() + packages
+    success, stdout, stderr = run_command(
+        install_cmd,
+        f"安装 GRUB 包 ({' '.join(packages)})",
+        timeout=300
+    )
+    
+    if success:
+        log_success(f"✓ GRUB 包安装成功")
+        return True
+    else:
+        log_error(f"✗ GRUB 包安装失败: {stderr}")
+        return False
 
 
 def check_chroot_environment(mount_point: str, distro_type: str = "unknown") -> Tuple[bool, str]:
     """
     检查 chroot 环境是否可用。
     检测可用的 GRUB 命令及其版本。
+    如果缺少 GRUB 命令，尝试自动安装。
     """
     log_step("检查 chroot 环境", f"挂载点: {mount_point}")
     
@@ -915,27 +1008,36 @@ def check_chroot_environment(mount_point: str, distro_type: str = "unknown") ->
             log_debug(f"  ✗ 未找到命令: {cmd}")
     
     if not found_commands:
-        log_error(f"=" * 60)
+        log_warning(f"chroot 环境中未找到关键的 GRUB 命令")
-        log_error(f"chroot 环境中未找到关键的 GRUB 命令！")
+        log_info(f"尝试自动安装 GRUB 包...")
-        log_error(f"")
-        log_error(f"目标系统缺少 GRUB 引导加载器。")
-        log_error(f"")
-        log_error(f"解决方案：")
-        log_error(f"1. 进入目标系统的 chroot 环境")
-        log_error(f"2. 安装 GRUB 包：")
-        install_cmd = _get_grub_package_install_cmd(distro_type)
-        log_error(f"   {install_cmd}")
-        log_error(f"")
-        log_error(f"3. 然后重新运行此工具")
-        log_error(f"=" * 60)
         
-        error_msg = (
+        # 尝试自动安装
-            f"目标系统缺少 GRUB 工具。\n"
+        if _auto_install_grub(mount_point, distro_type):
-            f"请先安装 GRUB 包：\n"
+            # 重新检查命令
-            f"{install_cmd}\n"
+            log_info("重新检查 GRUB 命令...")
-            f"然后重新运行修复工具。"
+            for cmd in critical_commands:
-        )
+                success, _, _ = run_command(["sudo", "chroot", mount_point, "which", cmd], 
-        return False, error_msg
+                                             f"检查命令 {cmd}", timeout=10)
+                if success:
+                    found_commands.append(cmd)
+                    log_info(f"  ✓ 找到命令: {cmd}")
+            
+            if found_commands:
+                log_success("✓ 自动安装成功，GRUB 命令已可用")
+            else:
+                log_error("✗ 自动安装后仍未找到 GRUB 命令")
+                return False, "自动安装 GRUB 失败，请手动安装"
+        else:
+            log_error("=" * 60)
+            log_error(f"无法自动安装 GRUB 包")
+            log_error(f"")
+            log_error(f"请手动安装 GRUB 包：")
+            packages, pkg_cmd = _get_grub_packages(distro_type)
+            log_error(f"   chroot {mount_point}")
+            log_error(f"   {pkg_cmd} {' '.join(packages)}")
+            log_error(f"   exit")
+            log_error(f"=" * 60)
+            return False, "自动安装 GRUB 失败"
     
     # 检查 grub-install 版本（优先使用 grub2-install 如果存在）
     grub_cmd = "grub2-install" if "grub2-install" in found_commands else "grub-install"