diff --git a/README.md b/README.md
index 1921c9b..e81884c 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,7 @@ You can find all the original instructions from the author of this solution here
 
 ## How to use
 
+First, check that you have all necessary packages: `sudo apt-get install iptables-persistent` and `sudo apt-get install rsyslog` if you want to keep logs.
 Clone this repo to your server and run `sudo ./install.sh`
 To enable logging of all requests from forbidden ips run `sudo ./install.sh --log` instead. This requires rsyslogd to be up and running. If you are unsure - install it without logs.
 All the logs are in the file /var/log/rugov_blacklist/blacklist.log . Keep in mind - if your target could be interesting, you can get a lot of disk space used by this log!
diff --git a/install.sh b/install.sh
index 831ba07..291400e 100755
--- a/install.sh
+++ b/install.sh
@@ -16,14 +16,14 @@ if [[ "$FMTCURID" != "0" ]]; then
 fi
 
 if [[ ! -d "/etc/iptables/" ]]; then
-	echo "The script is intended to be used with iptables"
+	echo "The script is intended to be used with iptables. Are you sure all the necessary packages are installed? Run: 'sudo apt-get install iptables-persistent'"
 	exit 2
 fi
 
 if [[ "$FMTDOLOGS" ]]; then
 	echo "Installing rsyslogd config..."
 	if [[ ! -f "/etc/rsyslog.d/50-default.conf" ]]; then
-		echo "rsyslog.d/50-default.conf not found, there is no place to put the new config file"
+		echo "rsyslog.d/50-default.conf not found, are you sure rsyslogd is installed? Run: 'sudo apt-get install rsyslog'"
 		exit 1
 	fi