2

backend.py

@@ -1377,35 +1377,61 @@ def _manual_install_efi_files(mount_point: str, efi_target: str, efi_grub_file:
             if success and os.path.exists(host_output_path):
                 log_success(f"✓ 成功生成 EFI 文件: {host_output_path}")
                 
-                # 对于独立 /boot 分区，创建一个辅助的 grub.cfg 来设置正确的 root
+                # 对于独立 /boot 分区，创建辅助配置
                 if has_separate_boot:
-                    log_info("为独立 /boot 分区创建辅助 grub.cfg...")
+                    log_info("为独立 /boot 分区创建辅助配置...")
+                    
+                    # 获取 /boot 分区的 UUID
+                    boot_uuid = None
+                    try:
+                        success_uuid, uuid_out, _ = run_command(
+                            ["sudo", "blkid", "-s", "UUID", "-o", "value", f"{mount_point}/boot"],
+                            "获取 /boot 分区 UUID",
+                            timeout=10
+                        )
+                        if success_uuid:
+                            boot_uuid = uuid_out.strip()
+                    except:
+                        pass
+                    
+                    # 创建 EFI 分区上的 grub.cfg（GRUB 首先查找这里）
                     helper_cfg_path = os.path.join(mount_point, f"boot/efi/EFI/{bootloader_id}/grub.cfg")
                     try:
-                        helper_cfg = '''# Auto-generated by BootRepairTool for separate /boot partition
-# This file sets the correct root and loads the main config
+                        if boot_uuid:
+                            # 使用 UUID 搜索 /boot 分区
+                            helper_cfg = f'''# Auto-generated by BootRepairTool
+# For separate /boot partition (UUID: {boot_uuid})
 
-# Search for the /boot partition by filesystem type and files
-search --no-floppy --fs-uuid --set=root 
+# Search for /boot partition by UUID
+search --no-floppy --fs-uuid --set=root {boot_uuid}
+set prefix=($root)/grub2
 
-# If search fails, try common partition numbers
-if [ "${root}" = "${prefix}" ]; then
-    # Try (hd0,gpt2) - common /boot partition
-    if [ -f (hd0,gpt2)/grub2/grub.cfg ]; then
-        set root=(hd0,gpt2)
-        set prefix=(hd0,gpt2)/grub2
-    elif [ -f (hd0,2)/grub2/grub.cfg ]; then
-        set root=(hd0,2)
-        set prefix=(hd0,2)/grub2
-    fi
+# Load main configuration
+configfile ($root)/grub2/grub.cfg
+'''
+                        else:
+                            # 回退：尝试常见分区号
+                            helper_cfg = '''# Auto-generated by BootRepairTool
+# For separate /boot partition
+
+# Try to find /boot partition by looking for grub2 directory
+if [ -f (hd0,gpt2)/grub2/grub.cfg ]; then
+    set root=(hd0,gpt2)
+    set prefix=(hd0,gpt2)/grub2
+elif [ -f (hd0,2)/grub2/grub.cfg ]; then
+    set root=(hd0,2)
+    set prefix=(hd0,2)/grub2
+elif [ -f (hd1,gpt2)/grub2/grub.cfg ]; then
+    set root=(hd1,gpt2)
+    set prefix=(hd1,gpt2)/grub2
 fi
 
-# Load the main configuration
+# Load main configuration
 configfile ${prefix}/grub.cfg
 '''
                         with open(helper_cfg_path, 'w') as f:
                             f.write(helper_cfg)
-                        log_success(f"✓ 创建辅助 grub.cfg: {helper_cfg_path}")
+                        log_success(f"✓ 创建 EFI 辅助 grub.cfg: {helper_cfg_path}")
                     except Exception as e:
                         log_warning(f"创建辅助 grub.cfg 失败: {e}")
             else:
@@ -1501,6 +1527,51 @@ def install_efi_fallback(mount_point: str, efi_target: str, efi_grub_file: str,
     try:
         shutil.copy2(source_file, target_file)
         log_success(f"✓ EFI fallback 安装成功: {source_file} -> {target_file}")
+        
+        # 为 fallback 创建 grub.cfg（独立 /boot 分区时需要）
+        has_separate_boot = os.path.ismount(os.path.join(mount_point, "boot"))
+        if has_separate_boot:
+            log_info("检测到独立 /boot 分区，为 fallback 创建 grub.cfg...")
+            
+            # 获取 /boot 分区 UUID
+            boot_uuid = None
+            try:
+                success_uuid, uuid_out, _ = run_command(
+                    ["sudo", "blkid", "-s", "UUID", "-o", "value", f"{mount_point}/boot"],
+                    "获取 /boot UUID for fallback",
+                    timeout=10
+                )
+                if success_uuid:
+                    boot_uuid = uuid_out.strip()
+            except:
+                pass
+            
+            # 在 Boot 目录创建 grub.cfg
+            fallback_cfg_path = os.path.join(boot_dir, "grub.cfg")
+            try:
+                if boot_uuid:
+                    fallback_cfg = f'''# BootRepairTool fallback config
+search --no-floppy --fs-uuid --set=root {boot_uuid}
+set prefix=($root)/grub2
+configfile ($root)/grub2/grub.cfg
+'''
+                else:
+                    fallback_cfg = '''# BootRepairTool fallback config
+if [ -f (hd0,gpt2)/grub2/grub.cfg ]; then
+    set root=(hd0,gpt2)
+    set prefix=(hd0,gpt2)/grub2
+elif [ -f (hd0,2)/grub2/grub.cfg ]; then
+    set root=(hd0,2)
+    set prefix=(hd0,2)/grub2
+fi
+configfile ${prefix}/grub.cfg
+'''
+                with open(fallback_cfg_path, 'w') as f:
+                    f.write(fallback_cfg)
+                log_success(f"✓ 创建 fallback grub.cfg: {fallback_cfg_path}")
+            except Exception as e:
+                log_warning(f"创建 fallback grub.cfg 失败: {e}")
+        
         return True
     except Exception as e:
         log_error(f"复制 EFI fallback 文件失败: {e}")
@@ -2109,6 +2180,54 @@ def chroot_and_repair_grub(mount_point: str, target_disk: str,
         
         log_success("✓ GRUB 环境重建完成")
         
+        # 5. 为独立 /boot 分区创建 EFI 辅助 grub.cfg
+        has_separate_boot = os.path.ismount(os.path.join(mount_point, "boot"))
+        if has_separate_boot:
+            log_info("为独立 /boot 分区创建 EFI 辅助 grub.cfg...")
+            
+            # 获取 /boot 分区 UUID
+            boot_uuid = None
+            try:
+                success_uuid, uuid_out, _ = run_command(
+                    ["sudo", "blkid", "-s", "UUID", "-o", "value", f"{mount_point}/boot"],
+                    "获取 /boot UUID",
+                    timeout=10
+                )
+                if success_uuid:
+                    boot_uuid = uuid_out.strip()
+                    log_info(f"  /boot UUID: {boot_uuid}")
+            except Exception as e:
+                log_warning(f"  获取 UUID 失败: {e}")
+            
+            # 为每个 EFI 目录创建 grub.cfg
+            for efi_dir in [efi_bootloader_id, "Boot"]:
+                efi_cfg_dir = os.path.join(mount_point, "boot/efi/EFI", efi_dir)
+                if os.path.exists(efi_cfg_dir):
+                    efi_cfg_path = os.path.join(efi_cfg_dir, "grub.cfg")
+                    try:
+                        if boot_uuid:
+                            efi_cfg_content = f'''# BootRepairTool - Find /boot partition
+search --no-floppy --fs-uuid --set=root {boot_uuid}
+set prefix=($root)/grub2
+configfile ($root)/grub2/grub.cfg
+'''
+                        else:
+                            efi_cfg_content = '''# BootRepairTool - Find /boot partition
+if [ -f (hd0,gpt2)/grub2/grub.cfg ]; then
+    set root=(hd0,gpt2)
+    set prefix=(hd0,gpt2)/grub2
+elif [ -f (hd0,2)/grub2/grub.cfg ]; then
+    set root=(hd0,2)
+    set prefix=(hd0,2)/grub2
+fi
+configfile ${prefix}/grub.cfg
+'''
+                        with open(efi_cfg_path, 'w') as f:
+                            f.write(efi_cfg_content)
+                        log_success(f"✓ 创建 {efi_dir}/grub.cfg")
+                    except Exception as e:
+                        log_warning(f"  创建失败: {e}")
+        
         grub_install_cmd = chroot_cmd_prefix + [
             _grub_install_cmd,
             f"--target={efi_target}",