From 37159dcb6def19810fe6678dacbbea97027b3ed0 Mon Sep 17 00:00:00 2001
From: codefiles <11915375+codefiles@users.noreply.github.com>
Date: Mon, 6 Apr 2026 03:16:21 -0400
Subject: [PATCH] Add LPath execute permissions methods (#4378)

---
 archinstall/lib/installer.py  |  9 ++++-----
 archinstall/lib/linux_path.py | 11 +++++++++++
 2 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/archinstall/lib/installer.py b/archinstall/lib/installer.py
index ab9b70c0..8207f60e 100644
--- a/archinstall/lib/installer.py
+++ b/archinstall/lib/installer.py
@@ -4,7 +4,6 @@ import platform
 import re
 import shlex
 import shutil
-import stat
 import subprocess
 import textwrap
 import time
@@ -29,6 +28,7 @@ from archinstall.lib.disk.utils import (
 )
 from archinstall.lib.exceptions import DiskError, HardwareIncompatibilityError, RequirementError, ServiceException, SysCallError
 from archinstall.lib.hardware import SysInfo
+from archinstall.lib.linux_path import LPath
 from archinstall.lib.locale.utils import verify_keyboard_layout, verify_x11_keyboard_layout
 from archinstall.lib.mirror.mirror_handler import MirrorListHandler
 from archinstall.lib.models.application import ZramAlgorithm
@@ -1386,7 +1386,7 @@ class Installer:
 				raise DiskError(f'Failed to install GRUB boot on {boot_partition.dev_path}: {err}')
 
 		if SysInfo.has_uefi() and uki_enabled:
-			grub_d = self.target / 'etc/grub.d'
+			grub_d = LPath(self.target) / 'etc/grub.d'
 			linux_file = grub_d / '10_linux'
 			uki_file = grub_d / '15_uki'
 
@@ -1406,10 +1406,9 @@ class Installer:
 			)
 
 			try:
-				mode = linux_file.stat().st_mode
-				linux_file.chmod(mode & ~(stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH))
 				uki_file.write_text(content)
-				uki_file.chmod(mode)
+				uki_file.add_exec()
+				linux_file.remove_exec()
 			except OSError:
 				error('Failed to enable UKI menu entries')
 		else:
diff --git a/archinstall/lib/linux_path.py b/archinstall/lib/linux_path.py
index d95f6d8d..295b43df 100644
--- a/archinstall/lib/linux_path.py
+++ b/archinstall/lib/linux_path.py
@@ -1,3 +1,4 @@
+import stat
 from pathlib import Path
 from typing import Self
 
@@ -9,3 +10,13 @@ class LPath(Path):
 
 	def relative_to_root(self) -> Self:
 		return self.relative_to(self.fs_root())
+
+	def add_exec(self) -> None:
+		"""Add execute permissions (mirrors `chmod +x`)."""
+		mode = self.stat().st_mode
+		self.chmod(mode | stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH)
+
+	def remove_exec(self) -> None:
+		"""Remove execute permissions (mirrors `chmod -x`)."""
+		mode = self.stat().st_mode
+		self.chmod(mode & ~(stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH))