ubuntu 16.0.4安装MySQL5.7

系统版本

root@sishen:~# uname -a

Linux sishen 4.10.0-35-generic #39~16.04.1-Ubuntu SMP Wed Sep 13 09:02:42 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

以下是通过APT的安装方式

官方参考文档

https://dev.mysql.com/doc/mysql-apt-repo-quick-guide/en/

下载MySQL官方提供的deb包：

https://repo.mysql.com//mysql-apt-config_0.8.8-1_all.deb

在终端执行：

root@sishen:~# dpkg -i mysql-apt-config_0.8.8-1_all.deb ，回车之后会弹出如下窗口：

然后使用方向键选择OK，回车即可。

root@sishen:~# apt-get update

安装

root@sishen:~# apt-get install –y mysql-server

查看状态

root@sishen:~# service mysql status

● mysql.service - MySQL Community Server
    Loaded: loaded (/lib/systemd/system/mysql.service; enabled; vendor preset: en
    Active: active (running) since 一 2017-11-06 11:05:17 CST; 25s ago
  Main PID: 46339 (mysqld)
    CGroup: /system.slice/mysql.service
            └─46339 /usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysql

11月 06 11:05:16 sishen systemd[1]: Starting MySQL Community Server...

11月 06 11:05:17 sishen systemd[1]: Started MySQL Community Server.

root@sishen:~# netstat -tap | grep mysql

tcp        0      0 localhost:mysql         *:*                    LISTEN      47316/mysqld

使用root登录mysql,注意：我的root账户密码是123456，

root@sishen:~# mysql -uroot -p123456

mysql: [Warning] Using a password on the command line interface can be insecure.

Welcome to the MySQL monitor.  Commands end with ; or \g.

Your MySQL connection id is 6

Server version: 5.7.20 MySQL Community Server (GPL)

Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its

affiliates. Other names may be trademarks of their respective

owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> show databases;

+--------------------+

| Database           |

+--------------------+

| information_schema |

| mysql              |

| performance_schema |

| sys                |

+--------------------+

4 rows in set (0.00 sec)

mysql> \q

Bye

mysql的管理员密码文件存放位置

/etc/mysql/debian.cnf

如果是以普通用户登录mysql，则需要创建mysql的普通用户

创建普通用户时，密码要求太高了，简单的都不行，最后一条命令成功了。

mysql> create user 'sishen'@'%' identified by '123qwe';

ERROR 1819 (HY000): Your password does not satisfy the current policy requirements

mysql> create user 'sishen'@'%' identified by '12345Qwer';

ERROR 1819 (HY000): Your password does not satisfy the current policy requirements

mysql> create user 'sishen'@'%' identified by '123456';

ERROR 1819 (HY000): Your password does not satisfy the current policy requirements

mysql> create user 'sishen'@'%' identified by 'SiShen@123';

Query OK, 0 rows affected (0.01 sec)

mysql> grant all privileges on *.* to 'sishen'@'%' identified by 'SiShen@123';

Query OK, 0 rows affected, 1 warning (0.00 sec)

mysql> flush privileges;

Query OK, 0 rows affected (0.00 sec)

测试

root@sishen:~# mysql -usishen -pSiShen@123

mysql: [Warning] Using a password on the command line interface can be insecure.

Welcome to the MySQL monitor.  Commands end with ; or \g.

Your MySQL connection id is 4

Server version: 5.7.20 MySQL Community Server (GPL)

Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its

affiliates. Other names may be trademarks of their respective

owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> show databases;

+--------------------+

| Database           |

+--------------------+

| information_schema |

| mysql              |

| performance_schema |

| sys                |

+--------------------+

4 rows in set (0.00 sec)

mysql> \q

Bye

到此安装结束。