centos7下二进制安装mysql5.6

1、检查系统中是否已安装mysql或mariadb.

　　rpm -qa|grep mysql 

　　rpm -qa|grep mariadb

如果为空，则  说明没有安装

　　

　　

2、卸载已安装的mariadb数据库

　　rpm -qa|grep mariadb|xargs rpm -e --nodeps

3、再次查看已安装的 mariadb 数据库，确认是否卸载完成。

　　rpm -qa|grep mariadb

4、下载mysql5.6二进制安装包

　　https://dev.mysql.com/downloads/mysql/mysql-5.6.47-linux-glibc2.12-x86_64.tar.gz

　　上传到Linux服务器 /usr/local/下

5、安装mysql5.6（在/usr/local/mysql56)

　　1、创建mysql用户账号

　　　　useradd -s /sbin/nologin -M mysql

　　2、解压压缩包、并重命名

　　　　cd /usr/local

　　　　tar -xzvf mysql-5.6.47-linux-glibc2.12-x86_64.tar.gz

　　　　mv mysql-5.6.47-linux-glibc2.12-x86_64 mysql56

　　3、复制配置文件、并修改配置文件

　　　　cp /usr/local/mysql56/support-files/my-default.cnf /etc/my.cnf

　　　　修改配置文件

　　　　

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[mysqld] # Remove leading # and set to the amount of RAM for the most important data # cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%. # innodb_buffer_pool_size = 128M # Remove leading # to turn on a very important data integrity option: logging # changes to the binary log between backups. # log_bin # These are commonly set, remove the # and set as required.   skip-name-resolve user = mysql basedir = /usr/local/mysql56 datadir = /usr/local/mysql56/data port = 3306 server_id = 1 socket = /usr/local/mysql56/mysql.sock character-set-server = utf8   # Remove leading # to set options mainly useful for reporting servers. # The server defaults are faster for transactions and fast SELECTs. # Adjust sizes as needed, experiment to find the optimal values. # join_buffer_size = 128M # sort_buffer_size = 2M # read_rnd_buffer_size = 2M

　　4、初始化数据库

　　修改mysql56的属组

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1	[root@localhost ~]# chown -R mysql.mysql /usr/local/mysql56

　　初始化，初始化失败缺少依赖包，安装 libaio.* 的依赖包。

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[root@localhost ~]# /usr/local/mysql56/scripts/mysql_install_db \ > --defaults-file=/etc/my.cnf \ > --user=mysql \ > --basedir=/usr/local/mysql56 \ > --datadir=/usr/local/mysql56/data Installing MySQL system tables.../usr/local/mysql56/bin/mysqld: error while loading shared libraries: libaio.so.1: cannot open shared object file: No such file or directory [root@localhost ~]# yum install libaio.* -y

6、配置并启动mysql

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[root@localhost ~]# cp /usr/local/mysql56/support-files/mysql.server /etc/init.d/mysqld [root@localhost ~]# chmod 755 /etc/init.d/mysqld [root@localhost ~]# sed -i 's#/usr/local/mysql#/usr/local/mysql56#g' /usr/local/mysql56/bin/mysqld_safe /etc/init.d/mysqld

　　(mysql二进制安装默认的路径为 /usr/local/mysql,启动脚本里 /usr/local/mysql 需要更换

　　启动mysql

　　service mysqld start

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[root@localhost ~]# service mysqld start Starting MySQL.Logging to '/usr/local/mysql56/data/localhost.localdomain.err'. . SUCCESS!

　　说明mysql5.6成功启动

7、添加自启动（开机启动）

　　chkconfig --add mysqld

　　chkconfig mysqld on

　　chkconfig --list mysqld

8、配置环境变量

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1 2	[root@localhost ~]# echo 'export PATH=/usr/local/mysql56/bin:$PATH' >> /etc/profile [root@localhost ~]# source /etc/profile

9、修改mysql密码

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[root@localhost ~]# mysqladmin -u root password '123456' mysqladmin: connect to server at 'localhost' failed error: 'Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)' Check that mysqld is running and that the socket: '/tmp/mysql.sock' exists!

　　解决方法：

 　　vi /etc/my.cnf

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socket = /usr/local/mysql56/mysql.sock 改为： socket = /tmp/mysql.sock

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[root@localhost ~]# service mysqld restart Shutting down MySQL.. SUCCESS! Starting MySQL. SUCCESS!10、设置远程登录<br>[root@localhost ~]# mysqladmin -u root password '123456' Warning: Using a password on the command line interface can be insecure. [root@localhost ~]# mysql -uroot -p Enter password: Welcome to the MySQL monitor.  Commands end with ; or \g. Your MySQL connection id is 6 Server version: 5.6.47 MySQL Community Server (GPL)   Copyright (c) 2000, 2020, 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> GRANT ALL PRIVILEGES ON *.* TO root@"%" IDENTIFIED BY "123456"; Query OK, 0 rows affected (0.00 sec)   mysql> quit; Bye [root@localhost ~]#

　远程登录，还需关闭防火墙

　　systemctl stop firewalld