准备工作
//创建目录
mkdir /opt/mysql
//跳转目录
cd /opt/mysql
下载MySQL 请耐心等待，也可以在Windows下载以后上传到 /opt/mysql目录
wget http://dev.mysql.com/get/mysql-5.7.26-1.el7.x86_64.rpm-bundle.tar
解压
tar -xvf mysql-5.7.26-1.el7.x86_64.rpm-bundle.tar
删除mariadb
//查看mariadb 是否存在
rpm -qa|grep mari
//如果mariadb 存在的话就卸载 ，因为跟MySQL冲突
rpm -e --nodeps mariadb-libs
安装libnuma*
yum install libnuma*
安装MySQL
rpm -ivh mysql-community-common-5.7.26-1.el7.x86_64.rpm
rpm -ivh mysql-community-libs-5.7.26-1.el7.x86_64.rpm
rpm -ivh mysql-community-client-5.7.26-1.el7.x86_64.rpm
rpm -ivh mysql-community-server-5.7.26-1.el7.x86_64.rpm
启动MySQL
systemctl start mysqld.service
查看密码
grep "password" /var/log/mysqld.log
c1g6u,-PBq:K 就是密码
设置你自己的密码
进入mysql 输入上面获取的密码
mysql -u root -p
假如密码是 woainijia
set password for 'root'@'localhost'=password('woainijia');
让密码立马生效
flush privileges;
此致 敬礼！ 感谢观看
