[root@localhost ~]# yum -y install libaio
600多m的rpm要上传到虚拟机上
mysql-5.7.24-linux-glibc2.12-x86_64.tar.gz
[root@localhost ~]# tar xf mysql-5.7.24-linux-glibc2.12-x86_64.tar.gz -C /usr/local/ ##注意是local不是src
[root@localhost ~]# cd /usr/local/
[root@localhost local]# mv mysql-5.7.24-linux-glibc2.12-x86_64/ mysql
[root@localhost local]# useradd -M -s /sbin/nologin mysql
[root@localhost local]# chown -R mysql:mysql /usr/local/mysql/
[root@localhost local]# vim /etc/my.cnf
[mysqld]
datadir=/usr/local/mysql/data
socket=/tmp/mysql.sock
[mysqld_safe]
log-error=/usr/local/mysql/data/mysql.log
pid-file=/usr/local/mysql/data/mysql.pid
[root@localhost local]# /usr/local/mysql/bin/mysqld --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data --initialize ##初始化数据库得到密码
密码为上面这个
添加环境变量
[root@nginx mysql]# echo "PATH=$PATH:/usr/local/mysql/bin" >> /etc/profile
[root@nginx mysql]# source /etc/profile ##这两步可以用ln -s /usr/local/mysql/bin/* /usr/local/sbin 但是开启服务时用/etc/init.d/mysql start
[root@localhost local]# cd mysql/
[root@localhost mysql]# cp support-files/mysql.server /etc/init.d/mysqld #复制到主配置文件就可以直接使用systemctl start mysqld
[root@localhost mysql]# chkconfig --add mysqld #也可以用chmod +x /etc/init.d/mysqld
[root@localhost mysql]# systemctl start mysqld ##/etc/init.d/mysqld start
注意：-p后面后面没有空格 password后面有空格
-------------------------------MySQL登不上解决方法-------------------
[root@localhost ~]# systemctl stop mysqld ##开启mysqld 还是mysql取决于 cp support-files/mysql.server /etc/init.d/mysqld 叫什么名字可以起名mysql
root@localhost ~]# mysqld_safe --skip-grant-tables &
[root@localhost ~]# mysql #直接登录进去
mysql> show databases;
mysql> use mysql ##进入数据库
mysql> show tables; ##查看有哪些表
mysql> desc user; ##查看列表
mysql> update user set authentication_string=PASSWORD('123456') where user='root';
密码修改成功
刷新授权表
OK