From aab94e9a820f69276cb5f77307a1db383b0e36ce Mon Sep 17 00:00:00 2001
From: lucaderi <deri@ntop.org>
Date: Mon, 17 Aug 2020 09:54:01 +0200
Subject: [PATCH] Added check for centos6

---
 packages/rpm/n2n.spec.in | 26 ++++++++++++++++----------
 1 file changed, 16 insertions(+), 10 deletions(-)

diff --git a/packages/rpm/n2n.spec.in b/packages/rpm/n2n.spec.in
index d113392..e9a0903 100644
--- a/packages/rpm/n2n.spec.in
+++ b/packages/rpm/n2n.spec.in
@@ -75,24 +75,30 @@ if ! grep -q n2n /etc/group; then
 fi
 
 if ! /usr/bin/id -u n2n > /dev/null 2>&1; then
-  echo 'Creating n2n user'
+  cho 'Creating n2n user'
   /usr/sbin/useradd -M -N -g n2n -r -s /bin/false n2n
 fi
 
 %post
-if [ ! -f /.dockerenv ]; then
-    /bin/systemctl daemon-reload
-    # NOTE: do not enable any services during first installation
+if [ -f /bin/systemctl ]; then
+  if [ ! -f /.dockerenv ]; then
+      /bin/systemctl daemon-reload
+      # NOTE: do not enable any services during first installation
+  fi
 fi
 
 %preun
-if [ ! -f /.dockerenv ]; then
-    # possibly remove the installed services
-    %systemd_preun supernode.service edge.service 'edge-ntopng@*.service' 'edge@*.service'
+if [ -f /bin/systemctl ]; then
+  if [ ! -f /.dockerenv ]; then
+      # possibly remove the installed services
+      %systemd_preun supernode.service edge.service 'edge-ntopng@*.service' 'edge@*.service'
+  fi
 fi
 
 %postun
-if [ ! -f /.dockerenv ]; then
-    # possibly restart the running services
-    %systemd_postun_with_restart supernode.service edge.service 'edge-ntopng@*.service' 'edge@*.service'
+if [ -f /bin/systemctl ]; then
+  if [ ! -f /.dockerenv ]; then
+      # possibly restart the running services
+      %systemd_postun_with_restart supernode.service edge.service 'edge-ntopng@*.service' 'edge@*.service'
+  fi
 fi