linux redhad 安装mysql5.7

1. 首先下载 mysql-5.7.21-1.el7.x86_64.rpm-bundle.tar

2. tar -xvf mysql-5.7.10-1.el7.x86_64.rpm-bundle.tar 

3. 卸载mariadb，安装mysql    

   [root@localhost jwzt]# rpm -qa |grep -i mariadb
   mariadb-libs-5.5.56-2.el7.x86_64
   
   卸载命令
   rpm -e --nodeps mariadb-libs

    

4. 然后依次安装

      rpm -ivh mysql-community-common-5.7.10-1.el7.x86_64.rpm 
      rpm -ivh mysql-community-libs-5.7.10-1.el7.x86_64.rpm 
      rpm -ivh mysql-community-client-5.7.10-1.el7.x86_64.rpm 
      rpm -ivh mysql-community-server-5.7.10-1.el7.x86_64.rpm
    

    

  5. 启动mysql服务   systemctl start mysqld   

  查看mysql状态已经启动 service mysqld status  

  6.修改初始化密码  

查看初始化密码

[root@DEV-MEE-DB-1 home]# cat /var/log/mysqld.log
2019-08-27T08:18:07.855506Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2019-08-27T08:18:08.338034Z 0 [Warning] InnoDB: New log files created, LSN=45790
2019-08-27T08:18:08.449066Z 0 [Warning] InnoDB: Creating foreign key constraint system tables.
2019-08-27T08:18:08.511833Z 0 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: 33c278c0-c8a3-11e9-b80b-00505684246d.
2019-08-27T08:18:08.528335Z 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened.
2019-08-27T08:18:08.529165Z 1 [Note] A temporary password is generated for root@localhost: z&uzizqi;03S

初始化密码为：z&uzizqi;03S

7. mysql -u root  -p z&uzizqi;03S  登录mysql

设置mysql密码验证等级：set global validate_password_policy=LOW 

输入    ALTER USER 'root'@'localhost' IDENTIFIED BY '123456'; 

再次登录发现密码修改成功！！！！！

 

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