[转]Mariadb的root密码忘记后的解决方法
环境背景：CentOS 7.2
| 一、编辑/usr/lib/systemd/system/mariadb.service 文件，在Service段中添加 |
|
1
2
3
4
5
6
7
8
9
10
11
12
|
[Service]Type=simpleUser=mysqlGroup=mysqlUser=mysqlGroup=mysqlExecStartPre=/usr/libexec/mariadb-prepare-db-dir %n
# Note: we set --basedir to prevent probes that might trigger SELinux alarms,# per bug #547485#在Server段中的ExecStart出添加如下ExecStart=/usr/bin/mysqld_safe --basedir=/usr --skip-grant-tables --skip-networking
|
|
二、键入systemctl daemon-reload使其立即生效 |
|
1
|
[root@node1 ~]# systemctl daemon-reload
|
| 三、重新启动mariadb服务并使用mysql联入 |
|
1
2
3
4
5
6
7
8
9
10
11
|
[root@node1 ~]# systemctl restart mariadb.service
[root@node1 ~]# mysql
Welcome to the MariaDB monitor. Commands end with ; or g.Your MariaDB connection id is 2
Server version: 5.5.44-MariaDB MariaDB ServerCopyright (c) 2000, 2015, Oracle, MariaDB Corporation Ab and others.Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.
MariaDB [(none)]> |
| 四、更改root用户的密码 |
|
1
2
3
4
5
6
|
MariaDB [(none)]> UPDATE mysql.user SET Password=PASSWORD('xiaoshui') WHERE user='root' and host='localhost';
Query OK, 0 rows affected (0.00 sec)Rows matched: 1 Changed: 0 Warnings: 0MariaDB [(none)]> FLUSH PRIVILEGES;Query OK, 0 rows affected (0.00 sec) |
| 五、退出并关闭mariadb服务并把/usr/lib/systemd/system/mariadb.service文件中刚刚添加的那两行移除 |
|
1
2
|
ExecStart=/usr/bin/mysqld_safe --basedir=/usr ExecStartPost=/usr/libexec/mariadb-wait-ready $MAINPID
|
| 六、启动mariadb服务，并使用新设置的密码连接 |
|
1
2
3
4
5
6
7
8
9
10
11
|
[root@node1 ~]# mysql -u root -h localhost -p
Enter password: Welcome to the MariaDB monitor. Commands end with ; or g.Your MariaDB connection id is 4
Server version: 5.5.44-MariaDB MariaDB ServerCopyright (c) 2000, 2015, Oracle, MariaDB Corporation Ab and others.Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.
MariaDB [(none)]> |