1. 下载源包
wget https://dev.mysql.com/get/Downloads/MySQL-8.0.20/mysql-8.0.20-linux-glibc2.12-x86_64.tar.xz
2. 解压tar包，移动到 /usr/local
tar -xvf mysql-8.0.20-linux-glibc2.12-x86_64.tar.xz
mv mysql-8.0.20-linux-glibc2.12-x86_64 /usr/local/mysql
3. 修改mysql 安装目录权限
chmod -R 755 /usr/local/mysql
4. 创建mysql 数据存储目录并授权
mkdir -p /data/mysql
chmod 777 /data/mysql
5.编辑配置文件
vim /etc/my.cnf
配置如下：
[mysqld]
bind-address=0.0.0.0
port=3306
user=mysql
basedir=/usr/local/mysql
datadir=/data/mysql
socket=/tmp/mysql.sock
#socket=/data/mysql/mysql.sock
log-error=/data/mysql/mysql.err
pid-file=/data/mysql/mysql.pid
##character config
character_set_server=utf8mb4
symbolic-links=0
explicit_defaults_for_timestamp=true
interactive_timeout=28800
wait_timeout=28800
max_connect_errors=9999
[mysqld_safe]
log-error=/data/mysql/mariadb.log
pid-file=/data/mysql/mariadb.pid
#
# include all files from the config directory
#
!includedir /etc/my.cnf.d
6.创建用户 &用户组
groupadd mysql
useradd -g mysql mysql
7.初始化mysql，拿到零时密码
./bin/mysqld --initialize --user=mysql --datadir=/data/mysql --basedir=/usr/local/mysql
cat /data/mysql/mysql.err
8.注册mysql 启动服务并启动
cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql
service mysql start
9.登录并修改密码
./bin/mysql -u root -h 127.0.0.1 - P13306 -p testPaww
ALTER USER 'root'@'localhost' IDENTIFIED BY 'testPaww';
FLUSH PRIVILEGES;
9.开放远程连接
use mysql;
update user set user.Host='%' where user.User='root';
flush privileges;
10. 创建用户并授权
CREATE USER 'eagle'@'%' IDENTIFIED BY 'testPaww';
GRANT all ON *.* TO 'eagle'@'%';
