CentOS7 安装 mysql-8.0.25-el7-x86_64.tar.gz

下载好安装包：mysql-8.0.25-el7-x86_64.tar.gz

假设解压后的目录为： /opt/mysql/mysql-8.0.25-el7-x86_64

1、修改脚本

进入该目录下的脚本文件： support-files/mysql.server

根据脚本内容，假设设置变量为：

basedir=/opt/mysql/mysql-8.0.25-el7-x86_64
datadir=/opt/mysql/data

basedir 表示mysql安装包家目录；

datadir 表示存放数据文件的目录；

 

2、编辑配置文件 /etc/my.cnf 

[mysqld]
datadir=/opt/mysql/data
# socket=/opt/mysql/mysql-8.0.25-el7-x86_64/mysql.sock
# 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/mariadb/mariadb.log
pid-file=/var/run/mariadb/mariadb.pid

# include all files from the config directory
!includedir /etc/my.cnf.d

确保 datadir 跟步骤1 一致；

 

3. 创建mysql  组及用户

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

4. 设置用户 mysql 拥有mysql数据目录及mysql家目录权限

chown -R mysql:mysql /opt/mysql/data
chown -R mysql:mysql /opt/mysql/mysql-8.0.25-el7-x86_64

5. 生成mysql数据文件

在 /opt/mysql/mysql-8.0.25-el7-x86_64 目录里，运行：

./bin/mysqld --user=mysql --base=/opt/mysql/mysql-8.0.25-el7-x86_64 --datadir=/opt/mysql/data --initialize

6、启动mysql服务

在 /opt/mysql/mysql-8.0.25-el7-x86_64 目录里，运行：

./support-files/mysql.server start