Centos7 Mysql 离线安装

1.下载mysql

https://downloads.mysql.com/archives/get/p/23/file/mysql-5.7.30-1.el7.x86_64.rpm-bundle.tar

2.查看并删除机器中 mariadb

# rpm -qa | grep mariadb
# rpm -qa | grep mariadb |xargs yum remove -y

3.查找并删除mysql残留文件

# find / -name mysql

将找到的mysql相关文件和目录删除

# rm -rf /var/lib/mysql
# rm -rf /var/log/mysqld.log
# rm -rf /var/log/mysql.log

4.将下载的文件 mysql-5.7.30-1.el7.x86_64.rpm-bundle.tar 放在安装目录，并解压

# tar -xvf mysql-5.7.30-1.el7.x86_64.rpm-bundle.tar

5.依次安装解压后的RPM包（注：必须按顺序依次安装，否则会因缺少依赖安装失败）

#rpm -ivh mysql-community-common-5.7.30-1.el7.x86_64.rpm
#rpm -ivh mysql-community-libs-5.7.30-1.el7.x86_64.rpm
#rpm -ivh mysql-community-devel-5.7.30-1.el7.x86_64.rpm
#rpm -ivh mysql-community-libs-compat-5.7.30-1.el7.x86_64.rpm
#rpm -ivh mysql-community-client-5.7.30-1.el7.x86_64.rpm
#rpm -ivh mysql-community-server-5.7.30-1.el7.x86_64.rpm

6.修改mysql配置文件，根据自己需求编辑 /etc/my.cnf 文件

# vim /etc/my.cnf

7.设置Mysql 开机自启动

# sudo systemctl enable mysqld

8.启动mysql

# systemctl start mysqld

9.查看启动状态和开启的端口是否正常

# systemctl status mysqld
# netstat -plntu | grep 3306

10.查找安装后的临时密码（注意：如果找不到临时密码，说明安装失败，参考后面附录）

# sudo grep 'temporary password' /var/log/mysqld.log

11.配置Mysql安全策略

# mysql_secure_installation

根据提示输入上面的临时密码，并设置新密码，如下：

[...]
Enter current password for root (enter for none):
OK, successfully used password, moving on...
[...]
Set root password? [Y/n] Y
New password:
Re-enter new password:
Remove anonymous users? [Y/n] Y
[...]
Disallow root login remotely? [Y/n] N
[...]
Remove test database and access to it [Y/n] Y
[...]
Reload privilege tables now? [Y/n] Y
All done!

12.登录Mysql

# mysql -u root -p

输入密码，成功进入，说明安装成功。

13.开启远程访问权限

登录mysql 后运行下面命令

GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'password' WITH GRANT OPTION;

附录：

如果安装完没有查找到临时密码，说明安装失败，需要卸载后，删除相关目录重新安装：

# yum remove mysql-community-server
# rm  -rf /var/lib/mysql

进入mysql解压目录，重新安装：

# rpm -ivh mysql-community-server-5.7.30-1.el7.x86_64.rpm

然后查找临时密码。

另附在线安装教程：

https://blog.csdn.net/abcdu1/article/details/87367656

参考：

https://stackoverflow.com/questions/40561251/no-temporary-password-in-mysqld-log

Centos7 Mysql 离线安装

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