一、添加Mysql APT源
从官方地址下载源deb文件，下载地址：http://dev.mysql.com/downloads/repo/apt/。如mysql-apt-config_0.7.3-1_all.deb。
然后执行：$ sudo dpkg -i mysql-apt-config_0.7.3-1_all.deb。
最后更新一下apt-get：
$ sudo apt-get update $ sudo apt-get upgrade
二、安装Mysql
直接执行：sudo apt-get install mysql-server。安装过程会提示输入密码，很快，速度没问题不过十来几十秒，即完成最新版Mysql 5.7.13的安装。
如果提示：mysqld: Can’t create/write to file ‘/var/lib/mysql/is_writable’，试着执行：
sudo chown mysql /var/lib/mysql sudo chgrp mysql /var/lib/mysql
如若提示：dpkg: error processing package mysql-community-server (–configure):，试着执行：
sudo apt-get remove --purge mysql-server mysql-client mysql-common sudo apt-get autoremove sudo apt-get autoclean
再来执行安装，估计就成了（以上是我亲测）。这种办法较编译源码安装，要快上不少。安装完成后，已注册好服务，service mysql stop/start/restart可用。配置文件在/etc/mysql。
root@iZ94il5ax7kZ:/usr/local/src/mysql# sudo apt-get install mysql-server Reading package lists... Done Building dependency tree Reading state information... Done The following extra packages will be installed: libmecab2 mysql-client mysql-common mysql-community-client mysql-community-server The following NEW packages will be installed: libmecab2 mysql-client mysql-common mysql-community-client mysql-community-server mysql-server 0 upgraded, 6 newly installed, 0 to remove and 0 not upgraded. Need to get 266 kB/27.2 MB of archives. After this operation, 214 MB of additional disk space will be used. Do you want to continue? [Y/n] Y Get:1 http://repo.mysql.com/apt/ubuntu/ trusty/mysql-5.7 mysql-common amd64 5.7.13-1ubuntu14.04 [266 kB] Fetched 266 kB in 0s (3,399 kB/s) Preconfiguring packages ... Selecting previously unselected package mysql-common. (Reading database ... 122487 files and directories currently installed.) Preparing to unpack .../mysql-common_5.7.13-1ubuntu14.04_amd64.deb ... Unpacking mysql-common (5.7.13-1ubuntu14.04) ... Selecting previously unselected package mysql-community-client. Preparing to unpack .../mysql-community-client_5.7.13-1ubuntu14.04_amd64.deb ... Unpacking mysql-community-client (5.7.13-1ubuntu14.04) ... Selecting previously unselected package mysql-client. Preparing to unpack .../mysql-client_5.7.13-1ubuntu14.04_amd64.deb ... Unpacking mysql-client (5.7.13-1ubuntu14.04) ... Selecting previously unselected package libmecab2. Preparing to unpack .../libmecab2_0.996-1.1_amd64.deb ... Unpacking libmecab2 (0.996-1.1) ... Selecting previously unselected package mysql-community-server. Preparing to unpack .../mysql-community-server_5.7.13-1ubuntu14.04_amd64.deb ... Unpacking mysql-community-server (5.7.13-1ubuntu14.04) ... Selecting previously unselected package mysql-server. Preparing to unpack .../mysql-server_5.7.13-1ubuntu14.04_amd64.deb ... Unpacking mysql-server (5.7.13-1ubuntu14.04) ... Processing triggers for man-db (2.6.7.1-1ubuntu1) ... Processing triggers for ureadahead (0.100.0-16) ... Setting up mysql-common (5.7.13-1ubuntu14.04) ... Setting up mysql-community-client (5.7.13-1ubuntu14.04) ... Setting up mysql-client (5.7.13-1ubuntu14.04) ... Setting up libmecab2 (0.996-1.1) ... Setting up mysql-community-server (5.7.13-1ubuntu14.04) ... .. * MySQL Community Server 5.7.13 is started Processing triggers for ureadahead (0.100.0-16) ... Setting up mysql-server (5.7.13-1ubuntu14.04) ... Processing triggers for libc-bin (2.19-0ubuntu6.9) ... root@iZ94il5ax7kZ:/usr/local/src/mysql# mysql -uroot -p************ 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 2 Server version: 5.7.13 MySQL Community Server (GPL) Copyright (c) 2000, 2016, 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>
参考链接：
http://blog.zenfery.cc/archives/144.html
http://stackoverflow.com/questions/37128417/mysql-5-7-installation-error-mysqld-cant-create-write-to-file-var-lib-mysql
http://askubuntu.com/questions/690855/mysql-5-6-dpkg-install-error-even-after-complete-uninstall
http://dev.mysql.com/doc/mysql-apt-repo-quick-guide/en/