From 79ec18e070f7ff4a93c5f8bd4d821eee7c21558f Mon Sep 17 00:00:00 2001
From: Natanael Copa <ncopa@alpinelinux.org>
Date: Wed, 17 Aug 2016 17:20:15 +0200
Subject: [PATCH 7/7] mount efivars read-only

unintentional writes to efivars may result in bricked hardware. mount it
read-only to play safe.
---
 init.d/sysfs.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/init.d/sysfs.in b/init.d/sysfs.in
index 6929810..3e4c26c 100644
--- a/init.d/sysfs.in
+++ b/init.d/sysfs.in
@@ -105,7 +105,7 @@ mount_misc()
 		modprobe -q efivarfs
 		if grep -qs efivarfs /proc/filesystems; then
 			ebegin "Mounting efivarfs filesystem"
-			mount -n -t efivarfs -o ${sysfs_opts} \
+			mount -n -t efivarfs -o ro,${sysfs_opts} \
 				efivarfs /sys/firmware/efi/efivars
 			eend $?
 		fi
-- 
2.9.3