/*************************************************************************** *       mysql [ERROR] Can't create IP socket: Permission denied * 说明： *     在嵌入式方面的，这种权限问题还是挺大的，而且有时候还不好找。 * *                                         2016-9-27 深圳 南山平山村 曾剑锋 **************************************************************************/一、错误现象：    cat /var/mysql/mysql.err        700101 00:01:09 mysqld_safe Starting mysqld daemon with databases from /var/mysql        700101  0:01:09 [Warning] '--skip-locking' is deprecated and will be removed in a future release. Please use '--skip-external-locking' instead.        700101  0:01:09 [Note] Event Scheduler: Loaded 0 events        700101  0:01:09 [Note] /usr/libexec/mysqld: ready for connections.        Version: '5.1.73-log'  socket: '/tmp/mysql.sock'  port: 3306  Source distribution        000101 00:06:42 mysqld_safe Starting mysqld daemon with databases from /var/mysql        000101  0:06:42 [Warning] '--skip-locking' is deprecated and will be removed in a future release. Please use '--skip-external-locking' instead.        000101  0:06:42 [ERROR] Can't create IP socket: Permission denied        000101  0:06:42 [ERROR] Aborting                000101  0:06:42 [Note] /usr/libexec/mysqld: Shutdown complete                000101 00:06:42 mysqld_safe mysqld from pid file /run/mysql/mysqld.pid ended二、原因：    应该是mysqld的执行用户是mysql，然后无法使用root权限的内容。三、解决办法：    cat /etc/my.cnf        ......        # The MySQL server        [mysqld]        ......        user=root        ......