系统环境:CentOS 7.6 关闭防火墙等安全机制 检查系统有没有默认安装的数据库 [root@mysqlmaster ~]# rpm -qa | grep mariadb mariadb-libs-5.5.56-2.el7.x86_64
卸载掉默认数据库 [root@mysqlmaster ~]# rpm -e mariadb-libs-5.5.56-2.el7.x86_64 --nodeps
下载预编译二进制包 [root@mysqlmaster ~]# wget https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.18-linux-glibc2.5-x86_64.tar.gz
解压包 [root@mysqlmaster ~]# tar fx mysql-5.7.18-linux-glibc2.5-x86_64.tar.gz -C /usr/local
给mysql重命名 或者创建软连接 [root@mysqlmaster ~]# mv /usr/local/mysql-5.7.18-linux-glibc2.5-x86_64/ /usr/local/mysql
创建软连接 （如果重命名了就不用创建软连接了） [root@mysqlmaster ~]# ln -s /usr/local/mysql-5.7.18-linux-glibc2.5-x86_64/ /usr/local/mysql
创建用户和组 [root@mysqlmaster ~]# groupadd mysql [root@mysqlmaster ~]# useradd -r -g mysql mysql
给mysql写个配置文件 [root@mysqlmaster ~]# vim /etc/my.cnf
[mysqld] datadir=/usr/local/mysql/data socket=/usr/local/mysql/mysql.sock symbolic-links=0
[mysqld_safe] log-error=/usr/local/mysql/logs/error.log pid-file=/usr/local/mysql/mysql.pid
[client] socket=/usr/local/mysql/mysql.sock
配置文件写好后紧接着创建配置文件里提到的路径 [root@mysqlmaster ~]# mkdir -p /usr/local/mysql/data [root@mysqlmaster ~]# mkdir -p /usr/local/mysql/logs [root@mysqlmaster ~]# touch /usr/local/mysql/logs/error.log
授权 [root@mysqlmaster ~]# chown -R mysql.mysql /usr/local/mysql/ [root@mysqlmaster ~]# chown -R mysql.mysql /etc/my.cnf
安装 [root@mysqlmaster ~]# /usr/local/mysql/bin/mysqld --initialize-insecure --user=mysql --basedir=/usr/local/mysql/ --datadir=/usr/local/mysql/data/
额外做一下安全加固 [root@mysqlmaster ~]# /usr/local/mysql/bin/mysql_ssl_rsa_setup --basedir=/usr/local/mysql/ --datadir=/usr/local/mysql/data/
copy启动脚本 [root@mysqlmaster ~]# cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld
修改文件 [root@mysqlmaster ~]# sed -i '46c basedir=/usr/local/mysql' /etc/init.d/mysqld [root@mysqlmaster ~]# sed -i '47c datadir=/usr/local/mysql/data' /etc/init.d/mysqld [root@mysqlmaster ~]# sed -i '63c mysql_pid_file_path=/usr/local/mysql/data/mysqld.pid' /etc/init.d/mysqld
启动数据库 [root@mysqlmaster ~]# /etc/init.d/mysqld start 启动数据库成功!
设置软连接方便启动 [root@mysqlmaster ~]# ln -s /usr/local/mysql/bin/* /usr/local/sbin/
修改密码(五交互式高大上修改密码)，并登录成功! [root@mysqlmaster ~]# mysql -e "use mysql;alter user 'root'@'localhost' identified by '123456';" [root@mysqlmaster ~]# mysql -uroot -p123456
加入到systemctl 进行管理 cat > /usr/lib/systemd/system/mysqld.service <<EOF [mysqld] [Unit] Description=MySQL SourcePath=/etc/init.d/mysqld Before=shutdown.target
[Service] User=mysql Type=forking ExecStart=/etc/init.d/mysqld start ExecStop=/etc/init.d/mysqld stop
[Install] WantedBy=multi-user.target EOF
重新加载服务的配置文件,并重启mysqld systemctl daemon-reload systemctl restart mysqld
查看日志是否启动成功 [root@mysqlmaster ~]# journalctl -f 启动成功!
