--- percona-server-5.6.25-73.1/scripts/mysql_system_tables_data.sql	2015-07-24 16:36:44.949657351 +0000
+++ percona-server-5.6.25-73.1/scripts/mysql_system_tables_data.sql	2015-07-24 17:28:29.695854307 +0000
@@ -39,17 +39,21 @@
 -- Fill "user" table with default users allowing root access
 -- from local machine if "user" table didn't exist before
 CREATE TEMPORARY TABLE tmp_user LIKE user;
-INSERT INTO tmp_user VALUES ('localhost','root','','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','','','','',0,0,0,0,'mysql_native_password','','N');
-REPLACE INTO tmp_user SELECT @current_hostname,'root','','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','','','','',0,0,0,0,'mysql_native_password','','N' FROM dual WHERE @current_hostname != 'localhost';
-REPLACE INTO tmp_user VALUES ('127.0.0.1','root','','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','','','','',0,0,0,0,'mysql_native_password','','N');
-REPLACE INTO tmp_user VALUES ('::1','root','','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','','','','',0,0,0,0,'mysql_native_password','','N');
+INSERT INTO tmp_user VALUES ('localhost','mysql','','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','','','','',0,0,0,0,'mysql_native_password','','N');
+REPLACE INTO tmp_user SELECT @current_hostname,'mysql','','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','','','','',0,0,0,0,'mysql_native_password','','N' FROM dual WHERE @current_hostname != 'localhost';
+REPLACE INTO tmp_user VALUES ('127.0.0.1','mysql','','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','','','','',0,0,0,0,'mysql_native_password','','N');
+REPLACE INTO tmp_user VALUES ('::1','mysql','','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','','','','',0,0,0,0,'mysql_native_password','','N');
+INSERT INTO tmp_user VALUES ('localhost','mysql_sysadmin','','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','','','','',0,0,0,0,'mysql_native_password','','N');
+REPLACE INTO tmp_user SELECT @current_hostname,'mysql_sysadmin','','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','','','','',0,0,0,0,'mysql_native_password','','N' FROM dual WHERE @current_hostname != 'localhost';
+REPLACE INTO tmp_user VALUES ('127.0.0.1','mysql_sysadmin','','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','','','','',0,0,0,0,'mysql_native_password','','N');
+REPLACE INTO tmp_user VALUES ('::1','mysql_sysadmin','','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','','','','',0,0,0,0,'mysql_native_password','','N');
 INSERT INTO tmp_user (host,user) VALUES ('localhost','');
 INSERT INTO tmp_user (host,user) SELECT @current_hostname,'' FROM dual WHERE @current_hostname != 'localhost';
 INSERT INTO user SELECT * FROM tmp_user WHERE @had_user_table=0;
 DROP TABLE tmp_user;
 
 CREATE TEMPORARY TABLE tmp_proxies_priv LIKE proxies_priv;
-INSERT INTO tmp_proxies_priv VALUES ('localhost', 'root', '', '', TRUE, '', now());
-REPLACE INTO tmp_proxies_priv SELECT @current_hostname, 'root', '', '', TRUE, '', now() FROM DUAL WHERE LOWER (@current_hostname) != 'localhost';
+INSERT INTO tmp_proxies_priv VALUES ('localhost', 'mysql', '', '', TRUE, '', now());
+REPLACE INTO tmp_proxies_priv SELECT @current_hostname, 'mysql', '', '', TRUE, '', now() FROM DUAL WHERE LOWER (@current_hostname) != 'localhost';
 INSERT INTO  proxies_priv SELECT * FROM tmp_proxies_priv WHERE @had_proxies_priv_table=0;
 DROP TABLE tmp_proxies_priv;