From fda1820a0fd2f5c4a2bc052c85abcfcb603b94dd Mon Sep 17 00:00:00 2001
From: Christopher Roy Bratusek <nano@jpberlin.de>
Date: Mon, 18 Jan 2021 18:53:03 +0100
Subject: [PATCH] systest update

---
 systest/SysTest | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/systest/SysTest b/systest/SysTest
index 5ee78660..ba694e56 100644
--- a/systest/SysTest
+++ b/systest/SysTest
@@ -86,7 +86,6 @@ mount_apex () {
 }
 
 # taken from Magisk, with modifications for NanoDroid
-
 toupper() {
 	echo "$@" | tr '[:lower:]' '[:upper:]'
 }
@@ -149,6 +148,11 @@ mount_partitions () {
 
 		mount -o bind /dev/urandom /dev/random
 
+		if is_mounted /system_root; then
+			umount /system 2&>/dev/null
+			umount /system_root 2&>/dev/null
+		fi
+
 		mkdir -p /system /system_root
 		mount -o rw ${SYSTEM_BLOCK} /system