mysql7.0安装_centos7.0下安装MySQL5.7.26

1.下载MySQL 5.7.26安装包&＃xff0c;卸载自带MySQL数据库

yum remove mariadb-libs -y

yum install -y libaio-devel

2.上传MySQL 5.7.26安装包&＃xff0c;并解压&＃xff0c;创建软连接

gunzip mysql‐5.7.26‐linux‐glibc2.12‐x86_64.tar.gz

tar -xvf mysql-5.7.26-linux-glibc2.12-x86_64.tar

ln -s /stage/mysql-5.7.26-linux-glibc2.12-x86_64 /usr/local/mysql

3.添加用户组&＃xff0c;用户&＃xff0c;创建目录&＃xff0c;修改相关目录权限

groupadd mysql

useradd -g mysql mysql

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

mkdir -p /data/3306/datadir

mkdir -p /data/3306/binlog

chown -R mysql.mysql /data*

4.修改profile

vi /etc/profile

export PATH&＃61;/usr/local/mysql/bin:$PATH

source /etc/profile

5.初始化

mysqld --initialize-insecure --user&＃61;mysql --basedir&＃61;/usr/local/mysql --datadir&＃61;/data/3306/data

或者

mysql --initialize --user&＃61;mysql --basedir&＃61;/usr/local/mysql --datadir&＃61;/data/3306/data

6.修改配置文件

vi /etc/my.cnf

[mysqld]

user&＃61;mysql

basedir&＃61;/usr/local/mysql

datadir&＃61;/data/3306/data

log_bin&＃61;/data/3306/binlog/mysql‐bin

port&＃61;3306

server_id&＃61;7

socket&＃61;/tmp/mysql.sock

[mysql]

socket&＃61;/tmp/mysql.sock

7.准备启动脚本

cd /usr/local/mysql/support‐files/

cp /usr/local/mysql/support‐files/mysql.server  /etc/init.d/mysqld

vi /etc/init.d/mysqld

basedir&＃61;/usr/local/mysql

datadir&＃61;/data/3306/data

/etc/init.d/mysqld start

8.修改密码

方法一&＃xff1a;mysqladmin -uroot -p password

方法二&＃xff1a;alter user root&＃64;localhost identified by &＃39;mysql&＃39;;

方法三&＃xff1a;mysqladmin -uroot -p password mypassword

方法四&＃xff1a;SET PASSWORD &＃61; PASSWORD("mysql");

方法五&＃xff1a;SET PASSWORD FOR &＃39;root&＃39;&＃64;&＃39;localhost&＃39; &＃61; PASSWORD("mysql");

方法六&＃xff1a;update mysql.user set authentication_string&＃61;password(&＃39;mysql&＃39;) where user&＃61;&＃39;root&＃39; and host&＃61;&＃39;localhost&＃39;;flush privileges;