centos7下载rpm包安装MySQL

yum安装实在太慢，然而RPM包安装并不顺利。

1.下载MySQL RPM包

http://www.mysql.com/downloads/

2.安装RPM包

http://dev.mysql.com/doc/refman/5.7/en/linux-installation-rpm.html
挂载并解压

fdisk -lmkdir /mnt/usbmount -t vfat /dev/sdb1 /mnt/usbcp /mnt/usb/mysql-*.tar /root/tar xvf mysql-*.tar

删除Mariadb库并安装MySQL
centos自带的是Mariadb，与MySQL冲突

rpm -qa | grep mariadbrpm -e --nodeps mariadb-libs-*rpm -ivh mysql-community-common-*rpm -ivh mysql-community-libs-*rpm -ivh mysql-community-client-*yum localinstall mysql-community-server-*systemctl start mysqld.service

修改root密码

sudo grep 'temporary password' /var/log/mysqld.logALTER USER 'root'@'localhost' IDENTIFIED BY 'MyNewPass4!';flush privilegescp /usr/share/mysql/my-default.cnf /etc/my.cnfsystemctl enable mysqld.service