CentOS7离线安装MySQL的教程详解

1.删除原有的mariadb，不然mysql装不进去

mariadb-libs-5.5.52-1.el7.x86_64
rpm -qa|grep mariadb
rpm -e --nodeps mariadb-libs

1.在选择为red hat enterprise linux 7 / oracle linux 7 ，把os的版本选择为all。

直接下载mysql-5.7.21-1.el7.x86_64.rpm-bundle.tar，所有的rpm包都在里面

rpm -ivh mysql-community-common-5.7.21-1.el7.x86_64.rpm
 rpm -ivh mysql-community-libs-5.7.21-1.el7.x86_64.rpm 
rpm -ivh mysql-community-devel-5.7.21-1.el7.x86_64.rpm 
rpm -ivh mysql-community-libs-compat-5.7.21-1.el7.x86_64.rpm 
rpm -ivh mysql-community-client-5.7.21-1.el7.x86_64.rpm
 rpm -ivh mysql-community-server-5.7.21-1.el7.x86_64.rpm

至此，mysql5.7所有文件安装完毕，接下来就是开启服务测试了。

1.首先关闭mysql服务：

service mysqld stop

2.然后修改配置文件：

vim /etc/my.cnf

3.接下来加入一句代码即可空密码登录mysql：

# disabling symbolic-links is recommended to prevent assorted security risks
skip-grant-tables   #添加这句话，这时候登入mysql就不需要密码
symbolic-links=0

4.开启mysql服务：

service mysqld start

5.空密码登录mysql：

mysql -u root -p    #输入命令回车进入，出现输入密码提示直接回车

6.设置mysql密码：

mysql> set password for root@localhost = password('123456');
error 1290 (hy000): the mysql server is running with the --skip-grant-tables option so it cannot execute this statement
mysql> flush privileges; #更新权限
query ok, 0 rows affected (0.00 sec)
mysql> set password for root@localhost = password('123456'); 
query ok, 0 rows affected, 1 warning (0.00 sec)
mysql>flush privileges; #更新权限
mysql>quit; #退出
service mysqld stop # 停止mysql服务, 恢复mysql配置
vim /etc/my.cnf   #修改配置文件
# disabling symbolic-links is recommended to prevent assorted security risks
# skip-grant-tables # 注释掉这句话
symbolic-links=0
service mysqld start # 启动mysql服务
mysql -uroot -p # 输入新密码登录

7.设置mysql开机自启：

systemctl enable mysqld

总结

以上所述是小编给大家介绍的centos7离线安装mysql的教程,希望对大家有所帮助