二进制包安装mysql

准备

1.先查看系统中是否已存在mysql，存在将其卸载

rpm -qa mysql rpm -qa mariadb yum remove xxx -y 

2.环境清理 清空PATH有关的mysql 注释掉之前的$PATH 没有就跳过这步

#export PATH=/application/mysql/bin:$PATH 

3.安装所需的基础依赖

yum install ncurses-devel libaio-devel gcc make cmake -y 

4.创建用户

useradd -s /sbin/nologin -M mysql 

实验步骤

mysql官网下载

1.下载二进制安装包

自行选择一个下载目录 这里我下载到/opt下

wget https://cdn.mysql.com/archives/mysql-5.6/mysql-5.6.40-linux-glibc2.12-x86_64.tar.gz 

4.解压到/usr/local/

tar -zxvf mysql-5.6.40-linux-glibc2.12-x86_64.tar.gz -C /usr/local  cd /usr/local/  mv mysql-5.6.40-linux-glibc2.12-x86_64/ mysql 

5.mysql下面没有data目录则创建

mkdir /usr/local/mysql/data 

6.修改属主属组

chown -R mysql.mysql /usr/local/mysql/ 

7.创建/etc/my.cnf文件

vim /etc/my.cnf 

[mysqld] port=3306 basedir=/usr/local/mysql datadir=/usr/local/mysql/data socket=/usr/local/mysql/mysql.sock character-set-server=utf8 log-error=/var/log/mysqld.log pid-file=/tmp/mysqld.pid  [mysql] socket=/usr/local/mysql/mysql.sock  [client] socket=/usr/local/mysql/mysql.sock 

8.初始化

/usr/local/mysql/scripts/mysql_install_db --defaults-file=/etc/my.cnf --basedir=/usr/local/mysql/ --datadir=/usr/local/mysql/data --user=mysql 

9.配置环境变量

vim /etc/profile export PATH=/usr/local/mysql/bin:$PATH 

10.复制启动脚本 修改脚本 启动

cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld  修改配置文件 vim /etc/init.d/mysqld  在46行 47行 补全路径 basedir=/usr/local/mysql datadir=/usr/local/mysql/data  执行脚本启动mysql [root@localhost support-files]# /etc/init.d/mysqld start Starting MySQL. SUCCESS! 

11.将mysql添加到系统服务

先关闭服务 /etc/init.d/mysqld stop vim /usr/lib/systemd/system/mysql.service 

注意这里的路径要跟你的安装路径一致 pid文件路径可以通过 开启mysql服务时 ps -ef | grep mysql来查看
PIDFile=/tmp/mysqld.pid
ExecStart=/usr/local/mysql/support-files/mysql.server start

[Unit] Description=Mysql After=syslog.target network.target remote-fs.target nss-lookup.target  [Service] Type=forking PIDFile=/tmp/mysqld.pid ExecStart=/usr/local/mysql/support-files/mysql.server start ExecReload=/bin/kill -s HUP $MAINPID ExecStop=/bin/kill -s QUIT $MAINPID PrivateTmp=false  [Install] WantedBy=multi-user.target 

systemctl daemon-reload systemclt start mysql 

12.测试，并修改root密码

启动mysql /etc/init.d/mysqld start  执行命令 默认没有密码直接回车 mysql -uroot -p  修改密码 先退出mysql exit 第一次输入密码直接回车 因为没有设置密码 第二次输入你想设置的密码 第三次再次输入密码确认 [root@localhost mysql]# mysqladmin -uroot -p password Enter password:  New password:  Confirm new password:  [root@localhost mysql]#  

13.远程登陆授权
指定网段内192.168.70.*

先登录mysql mysql -uroot -p  grant all privileges on *.* to root@'192.168.70.%' identified by '123456';  flush privileges; 

14.远程授权后可以再开一台虚拟机进行连接测试

[root@localhost opt]# mysql -uroot -p -h192.168.70.24