diff --git a/scripts/install_mariadb.sh b/scripts/install_mariadb.sh
index 0dffb0b..709737e 100755
--- a/scripts/install_mariadb.sh
+++ b/scripts/install_mariadb.sh
@@ -176,12 +176,11 @@ function enable_mariabackup() {
     echo "Please enter your current MySQL root password to process!"
     export MYSQL_ROOT_PASS
     until [[ "${MYSQL_ROOT_PASS}" != "" ]]; do
-        echo -n "MySQL root password: "; stty echo; read -rp MYSQL_ROOT_PASS; stty echo; echo
-        #read -s -rp "MySQL root password: " -e MYSQL_ROOT_PASS
+        echo -n "MySQL root password: "; stty -echo; read -r MYSQL_ROOT_PASS; stty echo; echo
     done
 
-    # Create user if not exists.
-    if mysql -u root -p"${MYSQL_ROOT_PASS}" -e "SELECT User FROM mysql.user;" | grep -q "${MARIABACKUP_USER}"; then
+    # Create default LEMPer database user if not exists.
+    if ! mysql -u root -p"${MYSQL_ROOT_PASS}" -e "SELECT User FROM mysql.user;" | grep -q "${MARIABACKUP_USER}"; then
         # Create mariabackup user.
         SQL_QUERY="CREATE USER '${MARIABACKUP_USER}'@'localhost' IDENTIFIED BY '${MARIABACKUP_PASS}';
 GRANT RELOAD, PROCESS, LOCK TABLES, REPLICATION CLIENT ON *.* TO '${MARIABACKUP_USER}'@'localhost';"