From b891d309c2060ebdc1c515fa06d6266ac2408208 Mon Sep 17 00:00:00 2001
From: Vincent Bernat <vincent@bernat.ch>
Date: Fri, 12 Nov 2021 10:32:56 +0100
Subject: [PATCH] Make check for privileged container work with cgroup v2

When running on top of a distribution using cgroup v2 (Debian
Bullseye, Fedora >= 31, Arch), creating a file at the base of the
hierarchy is not possible. However, we can create a directory.
---
 src/system_check.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/system_check.sh b/src/system_check.sh
index fb8a83f..002ebf3 100755
--- a/src/system_check.sh
+++ b/src/system_check.sh
@@ -44,7 +44,7 @@ else
 fi
 
 echo -n "Check for container privileged mode ...... "
-echo "hello" 2>/dev/null > /sys/fs/cgroup/aaa
+mkdir /sys/fs/cgroup/aaa 2> /dev/null
 if [ $? -eq 0 ]; then
   echo yes
 else