Centos7离线安装mysql5

1.安装mysql

1.下载离线安装包：mysql-5.7.30-1.el7.x86_64.rpm-bundle.tar 2.将部署包存放到/opt/文件夹下 3.解压并安装

cd /opt/ mkdir mysql tar -xvf /opt/mysql-5.7.30-1.el7.x86_64.rpm-bundle.tar -C /opt/mysql cd /opt/mysql/ rpm -Uvh *.rpm --nodeps --force

2. Mysql配置

1.首先关闭mysql服务：

service mysqld stop

2.然后修改配置文件：

vi /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

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; 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; Query OK, 0 rows affected (0.00 sec) mysql>quit; Bye

7.关闭无密码登陆配置： 关闭服务

service mysqld stop

打开配置：

vi /etc/my.cnf

注释无密码登陆功能

# Disabling symbolic-links is recommended to prevent assorted security risks # skip-grant-tables # 注释掉这句话

8.启动新密码mysql服务 启动mysql

service mysqld start # 启动mysql服务

新密码登陆：

mysql -uroot -p

3.设置mysql开机自启

systemctl enable mysqld