下载mysql

搜狐镜像：http://mirrors.sohu.com/mysql/MySQL-5.7/mysql-5.7.29-linux-glibc2.12-x86_64.tar.gz

检查环境

• 是否安装mysql

rpm -qa|grep -i mysql

• 是否安装MariaDB

rpm -qa|grep -i mariadb

• 卸载命令

yum -y remove xxx

• 准备安装包
  mysql-5.7.29-linux-glibc2.12-x86_64.tar.gz
• 是否安装libaio

rpm -qa|grep libaio

• 安装libaio

yum install libaio-devel.x86_64

解压安装包并重命名

tar -zxvf mysql-5.7.29-linux-glibc2.12-x86_64.tar.gz
mv mysql-5.7.29-linux-glibc2.12-x86_64 mysql-5.7.29

创建用户和用户组

groupadd mysql
useradd -r -g mysql -s /bin/false mysql

授予目录权限

chown -R mysql.mysql /usr/software/mysql

创建data文件夹

mkdir data

初始化数据库

/usr/software/mysql/mysql-5.7.29/bin/mysqld --user=mysql --basedir=/usr/software/mysql/mysql-5.7.29 --datadir=/usr/software/mysql/mysql-5.7.29/data --initialize

• 记下临时密码 在完成后最后一行

配置文件

vim /etc/my.cnf

[mysqld]
datadir=/usr/software/mysql/mysql-5.7.29/data
basedir=/usr/software/mysql/mysql-5.7.29
socket=/tmp/mysql.sock
user=mysql
port=3306
character-set-server=utf8

#跳过密码验证，忘记密码 可以设置，然后修改密码，再关闭
#skip-grant-tables

# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
# Settings user and group are ignored when systemd is used.
# If you need to run mysqld under a different user or group,
# customize your systemd unit file for mariadb according to the
# instructions in http://fedoraproject.org/wiki/Systemd

[mysqld_safe]

log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
# include all files from the config directory
!includedir /etc/my.cnf.d

将mysql加入服务

cp /usr/software/mysql/mysql-5.7.29/support-files/mysql.server /etc/init.d/mysql

修改目录basedir datadir

vim /etc/init.d/mysql

basedir=/usr/software/mysql/mysql-5.7.29
datadir=/usr/software/mysql/mysql-5.7.29/data

//开机启动
chkconfig mysql on
//创建目录
mkdir /etc/my.cnf.d/

启动服务

service mysql start

配置环境变量

vim /etc/profile

export PATH=$PATH:/usr/software/mysql/mysql-5.7.29/bin

//使配置生效
source /etc/profile

登录mysql修改密码、设置远程

mysql -uroot -p

alter user ‘root‘@‘localhost‘ identified by ‘201619706‘;
flush privileges;

use mysql;
update user set user.Host=‘%‘ where user.User=‘root‘;
flush privileges;
exit;

//重启服务
service mysql restart

centos7安装mysql 5.7.29