此次演示的是mysql 8.0.11的安装、启动与基本设置。
	下载mysql-8.0.11-el7-x86_64.tar.gz

1、解压并重命名 [root@localhost ~]# cd /data [root@localhost data]# ls mysql-8.0.11-el7-x86_64.tar.gz [root@localhost data]# tar -zxf mysql-8.0.11-el7-x86_64.tar.gz [root@localhost data]# mv mysql-8.0.11-el7-x86_64 mysql

2、创建mysql用户 [root@localhost data]# useradd -M -s /sbin/nologin mysql

3、初始化数据库 [root@localhost data]# cd mysql/ [root@localhost mysql]# ./bin/mysqld --initialize --user=mysql --datadir=/data/mysql/data 2018-04-26T03:06:01.637456Z 0 [Warning] [MY-011070] [Server] 'Disabling symbolic links using --skip-symbolic-links (or equivalent) is the default. Consider not using this option as it' is deprecated and will be removed in a future release. 2018-04-26T03:06:01.637709Z 0 [System] [MY-013169] [Server] /data/mysql/bin/mysqld (mysqld 8.0.11) initializing of server in progress as process 53030

	2018-04-26T03:06:17.384428Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: *wbnbphswv8>K*此为数据库初始密码
	2018-04-26T03:06:26.959938Z 0 [System] [MY-013170] [Server] /data/mysql/bin/mysqld (mysqld 8.0.11) initializing of server has completed

4、编辑配置文件 [root@localhost mysql]# vim /etc/my.cnf [client] port = 3306 socket = /tmp/mysql.sock

	[mysqld]
	datadir=/data/mysql/data
	socket=/tmp/mysql.sock
	port=3306
	user=mysql
	basedir=/data/mysql
	symbolic-links=0

	[mysqld_safe]
	log-error=/data/mysql/data/error.log
	pid-file=/data/mysql/data/mysql.pid

5、启动 [root@localhost mysql]# ./bin/mysqld --defaults-file=/etc/my.cnf & [1] 53216 [root@localhost mysql]# 2018-04-26T03:18:05.050872Z 0 [Warning] [MY-011070] [Server] 'Disabling symbolic links using --skip-symbolic-links (or equivalent) is the default. Consider not using this option as it' is deprecated and will be removed in a future release. 2018-04-26T03:18:05.051064Z 0 [System] [MY-010116] [Server] /data/mysql/bin/mysqld (mysqld 8.0.11) starting as process 53216 2018-04-26T03:18:06.208674Z 0 [Warning] [MY-010068] [Server] CA certificate ca.pem is self signed. 2018-04-26T03:18:06.240611Z 0 [System] [MY-010931] [Server] /data/mysql/bin/mysqld: ready for connections. Version: '8.0.11' socket: '/tmp/mysql.sock' port: 3306 MySQL Community Server - GPL.

6、查看进程 [root@localhost mysql]# ps aux| grep mysql qiang 10783 0.0 0.2 165020 4452 pts/0 S+ 14:38 0:00 /data/mysql/bin/mysql -uroot -p qiang 12866 0.0 0.0 112664 972 pts/1 R+ 15:19 0:00 grep --color=auto mysql root 14040 0.0 0.0 113252 1528 ? S 8月07 0:00 /bin/sh /data/mysql/bin/mysqld_safe --datadir=/data/mysql/data --pid-file=/data/mysql/data/baobao.pid mysql 14231 0.3 20.3 1365424 382536 ? Sl 8月07 14:47 /data/mysql/bin/mysqld --basedir=/data/mysq --datadir=/data/mysql/data --plugin-dir=/data/mysql/lib/plugin --user=mysql --log-error=/data/mysql/data/mysql_error.log --pid-file=/data/mysql/data/baobao.pid --socket=/tmp/mysql.sock --port=13306

7、设置启动脚本 [root@localhost mysql]# cp ./support-files/mysql.server /etc/init.d/mysqld 修改启动参数 [root@localhost mysql]# vi /etc/init.d/mysqld basedir=/data/mysql datadir=/data/mysql/data

8、关闭与启动 停止 [root@localhost data]# /etc/init.d/mysqld stop Shutting down MySQL... SUCCESS! 启动 [root@localhost ~]# /etc/init.d/mysqld start Starting MySQL.... SUCCESS!

9、数据库简单设置 [root@localhost mysql]# ./bin/mysql -uroot -p Enter password: wbnbphswv8>K Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 9 Server version: 8.0.11

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	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> show databases;
	ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.
	mysql> alter user root@localhost identified by '123123';
	Query OK, 0 rows affected (0.14 sec)

	mysql> show databases;
	+--------------------+
	| Database           |
	+--------------------+
	| information_schema |
	| mysql              |
	| performance_schema |
	| sys                |
	+--------------------+
	4 rows in set (0.10 sec)

	mysql>