1.前提

此安装方法的前提是，链接互联网

2.安装mysql

更新源
```
sudo apt-get update
```
安装MySQL-client-core-5.6

sudo apt-get install MySQL-client-core-5.6

安装mysql-client-5.6

sudo apt-get install mysql-client-5.6

安装mysql-server-5.6

sudo apt-get install mysql-server-5.6

3.检查mysql状态

执行完成上面的命令之后，正常情况mysql服务会自启动

检查mysql的启动状态
```
## 查看进程
ps -ef | grep mysql
```

查看端口监听

netstat -tap | grep mysql


* 链接mysql进行状态检查

mysql -h localhost -u root -p
Enter password:

mysql> status;

mysql Ver 14.14 Distrib 5.6.33, for debian-linux-gnu (x86_64) using EditLine wrapper

Connection id: 37
Current database:
Current user: root@localhost
SSL: Not in use
Current pager: stdout
Using outfile: ""
Using delimiter: ;
Server version: 5.6.33-0ubuntu0.14.04.1 (Ubuntu)
Protocol version: 10
Connection: Localhost via UNIX socket
Server characterset: latin1
Db characterset: latin1
Client characterset: utf8
Conn. characterset: utf8
UNIX socket: /var/run/mysqld/mysqld.sock
Uptime: 25 min 27 sec

Threads: 1 Questions: 115 Slow queries: 0 Opens: 87 Flush tables: 1 Open tables: 80 Queries per second avg: 0.075


## 4.修改必要的配置
sudo vim /etc/mysql/my.cnf
* 修改远程访问

为了可以远程访问，将[mysqld]下面的这行注释掉

Instead of skip-networking the default is now to listen only on

localhost which is more compatible and is not less secure.

bind-address = 127.0.0.1



* 修改字符编码，在client，mysqld，mysql配置段，分别追加如下编码信息

[client]
default-character-set = utf8

[mysqld]
character-set-server=utf8
lower_case_table_names = 1

[mysql]
default-character-set=utf8

再次查看status,变为utf8编码

Server characterset: utf8
Db characterset: utf8
Client characterset: utf8
Conn. characterset: utf8



* 新建数据库和用户

create database devicedb default character set utf8 collate utf8_general_ci;

CREATE USER "device"@"%" IDENTIFIED BY "4rfv$RFV";
GRANT ALL ON devicedb.* TO "device"@"%" IDENTIFIED BY "4rfv$RFV"; //只有执行了这一句才可以登陆
FLUSH PRIVILEGES;



## 5.卸载旧版本

停止mysql的服务

sudo service mysql stop

删除mysql的数据文件(必要的情况下)

sudo rm /var/lib/mysql/ -R

删除mqsql的配置文件

sudo rm /etc/mysql/ -R

删除mysql软件

sudo apt-get autoremove mysql* --purge

Ubuntu14.04安装mysql5.6