MySQL error 1045 – Access denied for user root@localhost

Don’t know what happened. We had an error (below) in duing installation of opensource monitoring tool called Observium and it is how to address it.

 

[root@Observium-CentOS /]# mysql -u root -p

ERROR 1045 (28000): Access denied for user ‘root’@’localhost’ (using password: YES)

 

Many different solution was tried, but this was the only steps to make it work.

[root@CentOS /]# /etc/init.d/mysqld stop
Stopping mysqld:                                           [  OK  ]
[root@CentOS /]# mysqld_safe –skip-grant-tables &
[1] 6724
[root@CentOS /]# 140304 09:03:54 mysqld_safe Logging to ‘/var/            log/mysqld.log’.
140304 09:03:54 mysqld_safe Starting mysqld daemon with databases from /            var/lib/mysql
[root@CentOS /]# mysql -u root
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.1.73 Source distribution

Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type ‘help;’ or ‘\h’ for help. Type ‘\c’ to clear the current input statement.

mysql> use mysql;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Database changed
mysql> update user set password=PASSWORD("new_pwd") where User=’root’;
Query OK, 3 rows affected (0.00 sec)
Rows matched: 3  Changed: 3  Warnings: 0

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)

mysql> quit
Bye
[root@Observium-CentOS /]# /etc/init.d/mysqld stop
140304 09:05:50 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended
Stopping mysqld:                                           [  OK  ]
[1]+  Done                    mysqld_safe –skip-grant-tables
[root@Observium-CentOS /]# /etc/init.d/mysqld start
Starting mysqld:                                           [  OK  ]
[root@Observium-CentOS /]# mysql -u root -p
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.1.73 Source distribution

Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type ‘help;’ or ‘\h’ for help. Type ‘\c’ to clear the current input statement.

mysql> quit
Bye

 

 

Good luck