diff --git a/bin/refresh.sh b/bin/refresh.sh
index 63889f60..e19b907a 100755
--- a/bin/refresh.sh
+++ b/bin/refresh.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 set -e
-systemctl restart mariadb.service
-systemctl status mariadb.service || exit $?
+systemctl restart mysql.service
+systemctl status mysql.service || exit $?
 /opt/compass/bin/manage_db.py createdb
 /opt/compass/bin/clean_installers.py --noasync
 /opt/compass/bin/clean_installation_logs.py
diff --git a/install/cobbler.sh b/install/cobbler.sh
index 346321e1..8845b3ae 100755
--- a/install/cobbler.sh
+++ b/install/cobbler.sh
@@ -144,20 +144,13 @@ chmod 644 /etc/httpd/conf.d/cobbler.conf
 
 sudo cp -rn /etc/xinetd.d /root/backup/
 sudo cp  $COMPASSDIR/misc/rsync /etc/xinetd.d/
-exit 0
+
 #sudo sed -i 's/^@dists=/# @dists=/g' /etc/debmirror.conf
 #sudo sed -i 's/^@arches=/# @arches=/g' /etc/debmirror.conf
 
 sudo rm -rf /var/lib/cobbler/config/systems.d/*
 
-echo "disable iptables"
 sudo systemctl stop firewalld
-if [[ "$?" == "0" ]]; then
-    echo "iptables is running"
-    exit 1
-else
-    echo "iptables is already stopped"
-fi
 
 # echo "disable selinux temporarily"
 # echo 0 > /selinux/enforce
diff --git a/install/compass.sh b/install/compass.sh
index fa561970..dbb92c0e 100755
--- a/install/compass.sh
+++ b/install/compass.sh
@@ -158,7 +158,7 @@ else
     echo "redis has already started"
 fi
 
-sudo systemctl status mariadb.service |grep running
+sudo systemctl status mysql.service |grep running
 if [[ "$?" != "0" ]]; then
     echo "mysqld is not started"
     exit 1
diff --git a/install/dependency.sh b/install/dependency.sh
index 69fc434b..1c9df576 100755
--- a/install/dependency.sh
+++ b/install/dependency.sh
@@ -10,7 +10,9 @@ if [ "$tempest" == "true" ]; then
         exit 1
     fi
 fi
-sudo yum install -y rsyslog logrotate ntp iproute openssh-clients python python-devel git wget syslinux amqp rabbitmq-server mod_wsgi httpd squid dhcp bind rsync yum-utils xinetd tftp-server gcc net-snmp-utils net-snmp net-snmp-python unzip openssl openssl098e ca-certificates  mariadb mariadb-server mysql-devel python-virtualenv python-setuptools python-pip bc libselinux-python
+
+sudo yum install http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm -y
+sudo yum install -y rsyslog logrotate ntp iproute openssh-clients python python-devel git wget syslinux amqp rabbitmq-server mod_wsgi httpd squid dhcp bind rsync yum-utils xinetd tftp-server gcc net-snmp-utils net-snmp net-snmp-python unzip openssl openssl098e ca-certificates mysql-devel mysql-server mysql MySQL-python python-virtualenv python-setuptools python-pip bc libselinux-python
 sudo yum --setopt=tsflags=noscripts -y remove redis
 sudo yum --enablerepo=remi,remi-test install -y redis
 
@@ -54,5 +56,5 @@ sudo systemctl enable sshd.service
 sudo systemctl enable rsyslog.service
 sudo systemctl enable ntpd.service
 sudo systemctl enable redis.service
-sudo systemctl enable mariadb.service
-sudo systemctl disable firewalld
+sudo systemctl enable mysql.service
+sudo systemctl enable rabbitmq-server.service
diff --git a/install/prepare.sh b/install/prepare.sh
index 90894ec3..0d490c75 100755
--- a/install/prepare.sh
+++ b/install/prepare.sh
@@ -108,9 +108,9 @@ echo "update mysqld"
 mkdir -p /var/log/mysql
 chmod -R 777 /var/log/mysql
 sleep 10
-systemctl restart mariadb.service
+systemctl restart mysql.service
 sudo sleep 10
-systemctl status mariadb.service
+systemctl status mysql.service
 if [[ "$?" != "0" ]]; then
     echo "failed to restart mysqld"
     exit 1
@@ -144,9 +144,9 @@ if [[ "$?" != "0" ]]; then
 else
     echo "mysql database set succeeded"
 fi
-sudo systemctl restart mariadb.service
+sudo systemctl restart mysql.service
 sudo sleep 10
-sudo systemctl status mariadb.service
+sudo systemctl status mysql.service
 if [[ "$?" != "0" ]]; then
     echo "mysqld is not started"
     exit 1
diff --git a/regtest/ansible/install/roles/compass/files/start.sh b/regtest/ansible/install/roles/compass/files/start.sh
index 767b1ecf..929b4cda 100644
--- a/regtest/ansible/install/roles/compass/files/start.sh
+++ b/regtest/ansible/install/roles/compass/files/start.sh
@@ -9,13 +9,13 @@ workon compass-core
 
 RET=1
 while [[ RET -ne 0 ]]; do
-    echo "waiting for mariadb to startup"
+    echo "waiting for mysql to startup"
     sleep 5
     mysql -uroot -e "status" > /dev/null 2>&1
     RET=$?
 done
 
-echo "mariadb started"
+echo "mysql started"
 
 # set mysql with default username and password
 mysqladmin -h127.0.0.1 --port=3306 -u root password root
diff --git a/regtest/ansible/install/roles/compass/templates/start.sh.j2 b/regtest/ansible/install/roles/compass/templates/start.sh.j2
index 87dc01f2..66f40232 100644
--- a/regtest/ansible/install/roles/compass/templates/start.sh.j2
+++ b/regtest/ansible/install/roles/compass/templates/start.sh.j2
@@ -9,13 +9,13 @@ workon compass-core
 
 RET=1
 while [[ RET -ne 0 ]]; do
-    echo "waiting for mariadb to startup"
+    echo "waiting for mysql to startup"
     sleep 5
     mysql -uroot -e "status" > /dev/null 2>&1
     RET=$?
 done
 
-echo "mariadb started"
+echo "mysql started"
 
 # set mysql with default username and password
 mysqladmin -h127.0.0.1 --port=3306 -u root password root