小弟刚刚接触Linux，想安装一个mysql，按照这个步骤尝试安装http://jingyan.baidu.com/article/4f7d5712d5f8181a2019270e.html，结果最后服务启动不了。
输入systemctl status mysql.service命令查看的时候显示
mysql.service - MySQL Community Server
Loaded: loaded (/lib/systemd/system/mysql.service; disabled; vendor preset: enabled)
Active: deactivating (final-sigterm) (Result: exit-code)
Process: 17564 ExecStart=/usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid (code=exited, status=1/FAILURE)
CGroup: /system.slice/mysql.service
└─17566 /usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/my...
Nov 20 06:51:35 ubuntu mysqld[17564]: 2016-11-20T14:51:35.520393Z 0 [Note] ...d.
Nov 20 06:51:35 ubuntu mysqld[17564]: mysqld: Table 'mysql.plugin' doesn't exist
Nov 20 06:51:35 ubuntu mysqld[17564]: 2016-11-20T14:51:35.520736Z 0 [ERROR]...t.
Nov 20 06:51:35 ubuntu mysqld[17564]: 2016-11-20T14:51:35.521871Z 0 [Warnin...d.
Nov 20 06:51:35 ubuntu mysqld[17564]: 2016-11-20T14:51:35.522009Z 0 [Warnin...ey
Nov 20 06:51:35 ubuntu mysqld[17564]: 2016-11-20T14:51:35.523079Z 0 [Note] ...06
Nov 20 06:51:35 ubuntu mysqld[17564]: 2016-11-20T14:51:35.523154Z 0 [Note] ...e.
Nov 20 06:51:35 ubuntu mysqld[17564]: 2016-11-20T14:51:35.523182Z 0 [Note] ...';
Nov 20 06:51:35 ubuntu mysqld[17564]: 2016-11-20T14:51:35.523352Z 0 [Note] ...'.
Nov 20 06:51:35 ubuntu systemd[1]: mysql.service: Control process exited, c...=1
Hint: Some lines were ellipsized, use -l to show in full.
输入journalctl -xe命令显示
-- Subject: Unit mysql.service has finished shutting down
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- Unit mysql.service has finished shutting down.
Nov 20 07:10:32 ubuntu systemd[1]: Starting MySQL Community Server...
-- Subject: Unit mysql.service has begun start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- Unit mysql.service has begun starting up.
Nov 20 07:10:33 ubuntu mysqld[32270]: 2016-11-20T15:10:33.122479Z 0 [Warning] TI
Nov 20 07:10:33 ubuntu mysqld[32270]: 2016-11-20T15:10:33.124201Z 0 [Note] /usr/
Nov 20 07:10:33 ubuntu mysqld[32270]: 2016-11-20T15:10:33.127834Z 0 [Note] InnoD
Nov 20 07:10:33 ubuntu mysqld[32270]: 2016-11-20T15:10:33.127858Z 0 [Note] InnoD
Nov 20 07:10:33 ubuntu mysqld[32270]: 2016-11-20T15:10:33.127864Z 0 [Note] InnoD
Nov 20 07:10:33 ubuntu mysqld[32270]: 2016-11-20T15:10:33.127869Z 0 [Note] InnoD
Nov 20 07:10:33 ubuntu mysqld[32270]: 2016-11-20T15:10:33.127874Z 0 [Note] InnoD
Nov 20 07:10:33 ubuntu mysqld[32270]: 2016-11-20T15:10:33.127879Z 0 [Note] InnoD
Nov 20 07:10:33 ubuntu mysqld[32270]: 2016-11-20T15:10:33.128131Z 0 [Note] InnoD
Nov 20 07:10:33 ubuntu mysqld[32270]: 2016-11-20T15:10:33.128221Z 0 [Note] InnoD
Nov 20 07:10:33 ubuntu mysqld[32270]: 2016-11-20T15:10:33.129445Z 0 [Note] InnoD
Nov 20 07:10:33 ubuntu mysqld[32270]: 2016-11-20T15:10:33.139914Z 0 [Note] InnoD
Nov 20 07:10:33 ubuntu mysqld[32270]: 2016-11-20T15:10:33.141532Z 0 [Note] InnoD
请各位大牛帮忙看看怎么回事，不胜感激！
