From 9ea2b50daeb024827f2f4edbfb02ce035efdd349 Mon Sep 17 00:00:00 2001
From: hwdsl2 <hwdsl2@users.noreply.github.com>
Date: Mon, 2 Jan 2017 01:43:21 -0600
Subject: [PATCH] Improve OS detection

- Check /etc/lsb-release if command "lsb_release" is missing
---
 extras/vpnupgrade.sh | 3 +++
 vpnsetup.sh          | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/extras/vpnupgrade.sh b/extras/vpnupgrade.sh
index d73515b..38255a0 100644
--- a/extras/vpnupgrade.sh
+++ b/extras/vpnupgrade.sh
@@ -21,6 +21,9 @@ exiterr()  { echo "Error: $1" >&2; exit 1; }
 exiterr2() { echo "Error: 'apt-get install' failed." >&2; exit 1; }
 
 os_type="$(lsb_release -si 2>/dev/null)"
+if [ -z "$os_type" ] && [ -f "/etc/lsb-release" ]; then
+  os_type="$(. /etc/lsb-release && echo "$DISTRIB_ID")"
+fi
 if [ "$os_type" != "Ubuntu" ] && [ "$os_type" != "Debian" ] && [ "$os_type" != "Raspbian" ]; then
   exiterr "This script only supports Ubuntu/Debian."
 fi
diff --git a/vpnsetup.sh b/vpnsetup.sh
index 0b702b9..2ea82f9 100755
--- a/vpnsetup.sh
+++ b/vpnsetup.sh
@@ -46,6 +46,9 @@ check_ip() {
 }
 
 os_type="$(lsb_release -si 2>/dev/null)"
+if [ -z "$os_type" ] && [ -f "/etc/lsb-release" ]; then
+  os_type="$(. /etc/lsb-release && echo "$DISTRIB_ID")"
+fi
 if [ "$os_type" != "Ubuntu" ] && [ "$os_type" != "Debian" ] && [ "$os_type" != "Raspbian" ]; then
   exiterr "This script only supports Ubuntu/Debian."
 fi