diff --git a/pym/install/install.py b/pym/install/install.py
index 8966efc..3f8d0ce 100644
--- a/pym/install/install.py
+++ b/pym/install/install.py
@@ -344,7 +344,6 @@ class Install(MethodsInterface):
         else:
             labels = ["calculate"]
         for efiname, efidir in reversed(zip(labels, efidirs)):
-            efidir = pathJoin(target.getDirectory(), efidir)
             self._install_grub_uefi(cmd_grub_install, prefix_boot, target,
                                     efidir, efiname)
         # удаляем устаревшие
@@ -360,19 +359,20 @@ class Install(MethodsInterface):
         """
         Установить grub с UEFI загрузчиком
         """
+        efifulldir = pathJoin(target.getDirectory(), efidir)
         grub_params = [
             "--boot-directory=%s" % pathJoin(
                 prefix_boot,
                 target.getBootDirectory()),
             "--bootloader-id=%s" % efiname,
             "--target=x86_64-efi",
-            "--efi-directory=%s" % efidir,
+            "--efi-directory=%s" % efifulldir,
             "--force"]
         # проверяем наличие в nv-ram нужной нам записи для исключения повтора
         efi_boot_mgr = getProgPath('/usr/sbin/efibootmgr')
         efi_disk = self.clVars.Select("os_install_disk_dev",
                                       where="os_install_disk_mount",
-                                      eq="/boot/efi", limit=1)
+                                      eq=efidir, limit=1)
         if efi_disk:
             efi_uuid = device.udev.get_device_info(
                 name=efi_disk).get("ID_PART_ENTRY_UUID", "")