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Linux mysql如何更改root密码

更新时间:2026-08-21 17:43:57 | 编辑:傲骨 | 信息来源:互联网

  说到root密码,很多人想到的是电脑系统的root账号密码,其实mysql也有root密码,那么在Linux系统中,mysql要如何修改root密码呢?特别是忘记了root密码要怎么办?

  通过登录mysql系统:

  代码如下

  # mysql -uroot -p

  Enter password: 【输入原来的密码】

  mysql》use mysql;

  mysql》 update user set password=passworD(“test”) where user=’root’;

  mysql》 flush privileges;

  mysql》 exit;

  在mysql系统外,使用mysqladmin:

  代码如下

  # mysqladmin -u root -p password “test123″

  Enter password: 【输入原来的密码】

  忘记原来的myql的root的密码:

  首先,你必须要有操作系统的root权限了。要是连系统的root权限都没有的话,先考虑root系统再走下面的步骤。

  类似于安全模式登录系统,有人建议说是pkill mysql,但是我不建议哈。因为当你执行了这个命令后,会导致这样的状况:

  代码如下

  /etc/init.d/mysqld status

  mysqld dead but subsys locked

  这样即使你是在安全模式下启动mysql都未必会有用的,所以一般是这样/etc/init.d/mysqld stop,如果你不幸先用了pkill,那么就start一下再stop咯。

  代码如下

  # mysqld_safe –skip-grant-tables &

  &,表示在后台运行,不再后台运行的话,就再打开一个终端咯。

  代码如下

  # mysql

  mysql》 use mysql;

  mysql》 UPDATE user SET password=password(“test123“) WHERE user=’root‘;

  mysql》 flush privileges;

  mysql》 exit;

  ##本来mysql是不分大小写的,但是这个是修改的mysql中的mysql数据库的具体的值,要注意到。

  上面就是Linux更改myaql的root密码的方法介绍了,本文还详细介绍了mysql忘记root密码的修改方法,希望对你有所帮助。


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