網(wǎng)上有很多關(guān)于Mac os 安裝MAMP PRO后出現(xiàn)數(shù)據(jù)庫無法啟動的故障處理辦法，然而每個都試了溉箕，完全不能解決問題晦墙，錯誤提示是：
InnoDB: The error means the system cannot find the path specified.
InnoDB: If you are installing InnoDB, remember that you must create
InnoDB: directories yourself, InnoDB does not create them.
InnoDB: Error: could not open single-table tablespace file ./mysql/slave_relay_log_info.ibd
InnoDB: We do not continue the crash recovery, because the table may become
InnoDB: corrupt if we cannot apply the log records in the InnoDB log to it.
InnoDB: To fix the problem and start mysqld:
InnoDB: 1) If there is a permission problem in the file and mysqld cannot
InnoDB: open the file, you should modify the permissions.
InnoDB: 2) If the table is not needed, or you can restore it from a backup,
InnoDB: then you can remove the .ibd file, and InnoDB will do a normal
InnoDB: crash recovery and ignore that table.
InnoDB: 3) If the file system or the disk is broken, and you cannot remove
InnoDB: the .ibd file, you can set innodb_force_recovery > 0 in my.cnf
InnoDB: and force InnoDB to continue crash recovery here.
170324 11:18:41 mysqld_safe mysqld from pid file /Applications/MAMP/tmp/mysql/mysql.pid ended
出現(xiàn)這個情況是之前已經(jīng)安裝過MAMP PRO，從倒數(shù)第三行的提示來看需要修改my.cnf肴茄，使用mamp打開mysql是可以正常啟動的晌畅，但是Hosts無法修改路徑及配置多個測試域名，每次都要去修改一大堆東西寡痰，很不方便抗楔，下面我們來解決MAMP PRO mysql無法啟動的問題；
其實原因初步判斷應(yīng)該是在MAMP PRO的應(yīng)用管理端拦坠，從應(yīng)用程序管理文件夾连躏，找到MAMP PRO，顯示包內(nèi)容贞滨，完成訪問路徑/Applications/MAMP PRO/MAMP PRO.app/Contents/Resources/my.cnf入热，復(fù)制你對應(yīng)版本的my.cnf文件到桌面，修改innodb force recovery=2；將原來的備份才顿，替換對應(yīng)版本的my.cnf莫湘，修改完成回到MAMP PRO控制面板，點擊mysql，成功啟動！
最后來張成功啟動的截圖雷逆，有圖有真相！
