mysql安装（5.7）

解压程序包

tar xf mysql-5.7.17-linux-glibc2.5-x86_64.tar.gz
mv mysql-5.7.17-linux-glibc2.5-x86_64 /application/ mysql-5.7.17

授权

chown -R mysql.mysql /application/mysql-5.7.17

初始化

/application/mysql-5.7.17/bin/mysqld --initialize --user=mysql --basedir=/application/mysql-5.7.17 --datadir=/application/mysql-5.7.17/data

记录初始密码（一定要记录）
A temporary password is generated for root@localhost: );xf/h%lm6iR

拷贝配置文件和启动文件

cp /application/mysql-5.7.17/support-files/my-default.cnf /etc/my.cnf
cp /application/mysql-5.7.17/support-files/mysql.server /etc/init.d/mysqld

修改启动文件内容

sed 's#/usr/local#/application#g' /application/mysql-5.7.17/bin/mysqld_safe /etc/init.d/mysqld -i

启动

/etc/init.d/mysqld start

修改root密码

mysqladmin -uroot -p password '123456'