From 4b664b7e472c80bb674b78be32ef26d1c000f994 Mon Sep 17 00:00:00 2001
From: Nyr <me@nyr.be>
Date: Wed, 20 May 2020 12:04:26 +0200
Subject: [PATCH] Detect OpenVZ 6

---
 wireguard-install.sh | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/wireguard-install.sh b/wireguard-install.sh
index dc635b9..9b54a8e 100644
--- a/wireguard-install.sh
+++ b/wireguard-install.sh
@@ -19,6 +19,12 @@ if [[ "$EUID" -ne 0 ]]; then
 	exit
 fi
 
+# Detect OpenVZ 6
+if [[ $(uname -r | cut -d "." -f 1) -eq 2 ]]; then
+	echo "The system is running an old kernel, which is incompatible with this installer"
+	exit
+fi
+
 # Detect OS
 # $os_version variables aren't always in use, but are kept here for convenience
 if grep -qs "ubuntu" /etc/os-release; then