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  • MySQL5.7 忘记root密码,怎么破?

    MySQL5.7 忘记root密码,怎么破?

    关服

    # kill $mysql_pid
    

    免密启动

    # /usr/local/mysql57/bin/mysqld_safe --defaults-file=/etc/my.cnf --skip-grant-tables &
    [1] 16688
    2017-12-08T10:32:24.764472Z mysqld_safe Logging to '/data/database/mysql/host-30-0-0-196.err'.
    2017-12-08T10:32:24.901997Z mysqld_safe Starting mysqld daemon with databases from /data/database/mysql
    

    改密码呀

    # /usr/local/mysql57/bin/mysql -S /tmp/mysql.sock 
    mysql> update mysql.user set authentication_string=password('4a68a3c809c38e31') where user='root' ; 
    Query OK, 1 row affected, 1 warning (0.01 sec)
    Rows matched: 1  Changed: 1  Warnings: 1
    
    mysql> quit
    Bye
    

    重启

    # /usr/local/mysql57/bin/mysqladmin -S /tmp/mysql3308.sock shutdown  
    2017-12-08T10:33:02.360399Z mysqld_safe mysqld from pid file /data/database/mysql/host-30-0-0-196.pid ended
    [1]+  Done                  阿/usr/local/mysql57/bin/mysqld_safe --defaults-file=/etc/my.cnf --skip-grant-tables
    
    # /usr/local/mysql57/bin/mysqld_safe --defaults-file=/etc/my.cnf
    

    还得再改一次

    You must reset your password using ALTER USER statement before executing this statement.
    mysql> alter user root@localhost identified by '4a68a3c809c38e31';
    Query OK, 0 rows affected (0.01 sec)
    

    可以了

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  • 原文地址:https://www.cnblogs.com/wshenjin/p/8006762.html
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