CentOS 7 安装mysql-8.0.24（linux）

#移动该文件到/usr/local/下，并将文件夹名称修改为mysql
mv mysql-8.0.24-linux-glibc2.12-x86_64 /usr/local/mysql 
#在/usr/local/mysql目录下创建data目录     
mkdir /usr/local/mysql/data                              
cd

创建mysql用户组和用户

cat /etc/group | grep mysql
cat /etc/passwd |grep mysql
groupadd mysql
useradd -r -g mysql mysql

更改mysql目录下所有的目录及文件夹所属的用户组和用户，以及权限

chown -R mysql:mysql /usr/local/mysql

chmod -R 755 /usr/local/mysql

检查该链接库文件有没有安装使用

rpm -qa|grep libaio
yum install libaio-devel.x86_64

yum -y install numactl

编译安装并初始化mysql,务必记住初始化输出日志末尾的密码~~红框为数据库管理员登入临时密码!!!

cd /usr/local/mysql/bin
./mysqld --initialize --user=mysql --datadir=/usr/local/mysql/data --basedir=/usr/local/mysql

vi /etc/my.cnf

[mysqld]
datadir=/usr/local/mysql/data
port=3306
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
symbolic-links=0
max_connections=600
innodb_file_per_table=1

character_set_server=utf8

#
和安装mysql5.7差不多，但是要删除lower_case_table_names=1 ，要改为0，否则启动会报错Starting MySQL.. ERROR! The server quit without updating PID file (/usr/local/mysql/data/localhost.localdomain.pid).

/usr/local/mysql/support-files/mysql.server start

ps -ef|grep mysql | grep -v grep
ps -ef|grep mysqld | grep -v grep

添加软连接，并重启mysql服务

ln -s /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql

ln -s /usr/local/mysql/bin/mysql /usr/bin/mysql

service mysql restart

输入临时密码

mysql -u root -p

#修改密码
alter user 'root'@'localhost' identified by '自定义';
#开放远程连接
use mysql;
update user set user.Host='%' where user.User='root';
select user, host from user;
ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY '密码';
flush privileges;
quit

cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld  #将服务文件拷贝到init.d下，并重命名为mysql

chmod +x /etc/init.d/mysqld  #赋予可执行权限

chkconfig --add mysqld  #添加服务

chkconfig --list  ##显示服务列表