InnoDB: The innodb_system data file 'ibdata1' is not a regular InnoDB data file

[asa-x]

场景描述：
Ubantu 16.04 + mysql 5.7.27

异常描述：
安装成功了mysql，但是执行service mysql start 出现如下异常

root@asa-root:/var/log/mysql# sudo service mysql start
start: Job failed to start
root@asa-root:/var/log/mysql# cat error.log
2019-10-09T09:10:56.460877Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2019-10-09T09:10:56.463156Z 0 [Note] /usr/sbin/mysqld (mysqld 5.7.27-0ubuntu0.16.04.1-log) starting as process 4751 ...
2019-10-09T09:10:56.468777Z 0 [Note] InnoDB: PUNCH HOLE support available
2019-10-09T09:10:56.468802Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2019-10-09T09:10:56.468808Z 0 [Note] InnoDB: Uses event mutexes
2019-10-09T09:10:56.468813Z 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
2019-10-09T09:10:56.468817Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.8
2019-10-09T09:10:56.468822Z 0 [Note] InnoDB: Using Linux native AIO
2019-10-09T09:10:56.469359Z 0 [Note] InnoDB: Number of pools: 1
2019-10-09T09:10:56.469486Z 0 [Note] InnoDB: Using CPU crc32 instructions
2019-10-09T09:10:56.471560Z 0 [Note] InnoDB: Initializing buffer pool, total size = 16M, instances = 1, chunk size = 16M
2019-10-09T09:10:56.473269Z 0 [Note] InnoDB: Completed initialization of buffer pool
2019-10-09T09:10:56.473895Z 0 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority().
2019-10-09T09:10:56.483896Z 0 [ERROR] InnoDB: The innodb_system data file 'ibdata1' is not a regular InnoDB data file.
2019-10-09T09:10:56.483912Z 0 [ERROR] InnoDB: Plugin initialization aborted with error Generic error
2019-10-09T09:10:57.084354Z 0 [ERROR] Plugin 'InnoDB' init function returned error.
2019-10-09T09:10:57.084392Z 0 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2019-10-09T09:10:57.084399Z 0 [ERROR] Failed to initialize builtin plugins.
2019-10-09T09:10:57.084402Z 0 [ERROR] Aborting

2019-10-09T09:10:57.084421Z 0 [Note] Binlog end
2019-10-09T09:10:57.084482Z 0 [Note] Shutting down plugin 'CSV'
2019-10-09T09:10:57.084488Z 0 [Note] Shutting down plugin 'MyISAM'
2019-10-09T09:10:57.084910Z 0 [Note] /usr/sbin/mysqld: Shutdown complete