腾讯云CentOS 7.5安装MySQL

Posted 2021-12-23 fyjreact

dbq我刚刚装好mysql就不放图啦

1.下载安装包

wget http://dev.mysql.com/get/mysql57-community-release-el6-10.noarch.rpm

2.安装下载下来的rpm包

yum localinstall mysql57-community-release-el6-10.noarch.rpm

3.(可选)查看可用的安装包

yum repolist enabled|grep mysql

4.若之前在服务器已经装过了nginx可跳过，否则请安装

yum install gcc-c++

5.安装mysql

yum install -y mysql-community-server

(此时会报错，解决办法是通过WinSCP(下载地址：click here)修改/etc/yum.repos.d/mysql-community.repo 源文件如下：

[mysql57-community]
name=MySQL 5.7 Community Server
baseurl=http://repo.mysql.com/yum/mysql-5.7-community/el/7/$basearch/
enabled=1
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql

修改后保存再次执行 yum install -y mysql-community-server

6.启动mysql

/bin/systemctl start mysqld.service

7.修改密码

通过WinSCP找到etc目录下的my.cnf文件，直接在[mysqld]下添加"skip-grant-tables"(双引号不用加，作用是登录时跳过登录认证，空也可登录)保存

# mysql -uroot -p 进入mysql密码为任意数

mysql>use mysql；
mysql>update user set authentication_string=password(“newpassword“) where user=”root”；
mysql>flush privileges；

修改完退出 mysql>quit

删除之前在my.cnf文件中添加的"skip-grant-tables"

8.重启mysql

/bin/systemctl restart mysqld.service

9. 进入mysql

mysql -uroot -p