linux安装mysql

1.下载 

wget https://dev.mysql.com/get/Downloads/MySQL-8.0/mysql-8.0.11-linux-glibc2.12-x86_64.tar.gz

2.移动

mv /root/mysql-8.0.11-linux-glibc2.12-i686  /usr/local/mysql

3.创建数据存储位置

path

4.创建 mysql 用户组和 mysql 用户

groupadd mysql 
useradd -g mysql mysql

5.分配权限

chown -R mysql.mysql /usr/local/mysql
chown -R mysql.mysql /path

6.初始化数据库

创建mysql_install_db安装文件

mkdir mysql_install_db
chmod 777 ./mysql_install_db

初始化

bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data //初始化数据库

遇到问题

bin/mysqld: error while loading shared libraries: libaio.so.1: cannot open s

安装

  yum install -y libaio

重新初始化

7.mysql配置

cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld

修改 /etc/my.cnf文件

[mysqld]
    basedir = /usr/local/mysql   
    datadir = /usr/local/mysql/data
    socket = /usr/local/mysql/mysql.sock
    character-set-server=utf8
    port = 3306
   sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
 [client]
   socket = /usr/local/mysql/mysql.sock
   default-character-set=utf8

8.建立mysql服务

cp -a ./support-files/mysql.server /etc/init.d/mysqld
cp mysql.server /etc/init.d/mysql
chmod +x /etc/init.d/mysql
chkconfig --add mysql
chkconfig  --list mysqld

9.配置全局环境变量

编辑 / etc/profile 文件

export PATH=$PATH:/usr/local/mysql/bin:/usr/local/mysql/lib
export PATH
source /etc/profile

10.启动MySQL服务

service mysql start

查看初始密码

cat /root/.mysql_secret

11.登录MySQL

mysql -uroot -p密码

修改密码：

SET PASSWORD FOR 'root'@localhost=PASSWORD('123456');   #对应的换成你自己的密码即可了。

12设置可以远程登录

mysql>use mysql
mysql>update user set host='%' where user='root' limit 1;
刷新权限
mysql>flush privileges;