在成功安装mySQL 5.7服务器之后，它无法启动，并且在日志中引发错误。它能够以跳过表的mysqldsafe开始。
2017-11-12T14:54:07.416323Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details). 2017-11-12T14:54:07.428807Z 0 [Warning] Setting lower_case_table_names=2 because file system for /usr/local/var/mysql/ is case insensitive 2017-11-12T14:54:07.714710Z 0 [Warning] InnoDB: New log files created, LSN=45790 2017-11-12T14:54:07.750527Z 0 [Warning] InnoDB: Creating foreign key constraint system tables. 2017-11-12T14:54:07.815327Z 0 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX. 2017-11-12T14:54:07.834034Z 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened. 2017-11-12T14:54:07.841333Z 1 [Note] A temporary password is generated for root@localhost: dbch&6t6de5a5