1. sudo dpkg -i mysql-common_5.7.20-1ubuntu14.04_i386.deb
2. sudo dpkg -i libmysqlclient20_5.7.20-1ubuntu14.04_i38
3. sudo dpkg -i libmysqlclient-dev_5.7.20-1ubuntu14.04_i386.deb
4. sudo dpkg -i libmysqld-dev_5.7.20-1ubuntu14.04_i386.deb
5. sudo apt-get install libaio1
6. sudo dpkg -i mysql-community-client_5.7.20-1ubuntu14.04_i386.deb
7. sudo dpkg -i mysql-client_5.7.20-1ubuntu14.04_i386.deb
8. sudo dpkg -i mysql-community-source_5.7.20-1ubuntu14.04_i386.deb
9. sudo apt-get install libmecab2
10. sudo dpkg -i mysql-community-server_5.7.20-1ubuntu14.04_i386.deb 需设置密码
11. mysql -u root -p

参考《https://www.cnblogs.com/cxxjohnson/p/7486988.html》

ubuntu14.04安装mysql5.7.20