mysql 启动错误(InnoDB: Operating system error number 13 )

service mysqld status 可以看mysqld状态 service mysqld start 可以启动mysql 出现启动错误可以查看/var/log/mysqld.log 如果错误信息如下 131124 00:00:43  mysqld started 131124  0:00:43  InnoDB: Operating system error number 13 in a file operation. InnoDB: The error means mysqld does not have the access rights to InnoDB: the directory. InnoDB: File name /var/lib/mysql/innodb/ibdata1 InnoDB: File operation call: 'create'. InnoDB: Cannot continue operation. 131124 00:00:43  mysqld ended 错误13说明没有权限。使用命令 chmod -R 777 /mysql 没有解决 查看 getenforce 为enforcing 设置 提示一下：这个error number 就是系统的错误号，也是程序里的errorno 附上linux的 错误码信息 errno.00 is: Success    成功 errno.01 is: Operation not permitted         不允许此类操作 errno.02 is: No such file or directory         没有此文件或目录 errno.03 is: No such process                    没有此进程 errno.04 is: Interrupted system call           中断系统调用 errno.05 is: Input/output error                   输入输出错误 errno.06 is: No such device or address    没有此设备或地址 errno.07 is: Argument list too long            参数过长 errno.08 is: Exec format error                   执行格式错误 errno.09 is: Bad file descriptor                  无效的文件描述符 errno.10 is: No child processes                 不存在子进程 errno.11 is: Resource temporarily unavailable   资源暂时不可用 errno.12 is: Cannot allocate memory         分配内存失败 errno.13 is: Permission denied                   权限错误 errno.14 is: Bad address                           地址错误 errno.15 is: Block device required             块设备请求 errno.16 is: Device or resource busy         设备或资源忙 errno.17 is: File exists                                文件已经存在 errno.18 is: Invalid cross-device link          无效的交叉连接设备 errno.19 is: No such device                       没有此设备 errno.20 is: Not a directory                        不是一个目录 errno.21 is: Is a directory                           是一个目录 errno.22 is: Invalid argument                     参数非法 errno.23 is: Too many open files in system    系统打开文件太多 errno.24 is: Too many open files               打开文件太多 errno.25 is: Inappropriate ioctl for device          设备部支持该操作 errno.26 is: Text file busy                           文本文件忙 errno.27 is: File too large                           文件太大 errno.28 is: No space left on device            设备没有空间，一般为存储设备 errno.29 is: Illegal seek                               非法的seek操作 errno.30 is: Read-only file system               只读文件系统 errno.31 is: Too many links                         太多连接 errno.32 is: Broken pipe                              管道破裂 errno.33 is: Numerical argument out of domain          数值参数超出取值范围 errno.34 is: Numerical result out of range                  数值结果超出取值范围 errno.35 is: Resource deadlock avoided                   资源死锁 errno.36 is: File name too long                        文件名太长 errno.37 is: No locks available                         没有可用的锁 errno.38 is: Function not implemented            函数没有执行 errno.39 is: Directory not empty                      目录非空 errno.40 is: Too many levels of symbolic links 太多级符号连接 errno.41 is: Unknown error 41                         41未知错误 errno.42 is: No message of desired type         不被接受的消息类型 errno.43 is: Identifier removed                        标识符已被删除 errno.44 is: Channel number out of range     。。。 errno.45 is: Level 2 not synchronized errno.46 is: Level 3 halted errno.47 is: Level 3 reset errno.48 is: Link number out of range errno.49 is: Protocol driver not attached errno.50 is: No CSI structure available errno.51 is: Level 2 halted errno.52 is: Invalid exchange errno.53 is: Invalid request descriptor errno.54 is: Exchange full errno.55 is: No anode errno.56 is: Invalid request code errno.57 is: Invalid slot errno.58 is: Unknown error 58 errno.59 is: Bad font file format errno.60 is: Device not a stream errno.61 is: No data available errno.62 is: Timer expired errno.63 is: Out of streams resources errno.64 is: Machine is not on the network errno.65 is: Package not installed errno.66 is: Object is remote errno.67 is: Link has been severed errno.68 is: Advertise error errno.69 is: Srmount error errno.70 is: Communication error on send errno.71 is: Protocol error errno.72 is: Multihop attempted errno.73 is: RFS specific error errno.74 is: Bad message errno.75 is: Value too large for defined data type errno.76 is: Name not unique on network errno.77 is: File descriptor in bad state errno.78 is: Remote address changed errno.79 is: Can not access a needed shared library errno.80 is: Accessing a corrupted shared library errno.81 is: .lib secion in a.out corrupted errno.82 is: Attempting to link in too many shared libraries errno.83 is: Cannot exec a shared library directly errno.84 is: Invalid or incomplete multibyte or wide character errno.85 is: Interrupted system call should be restarted errno.86 is: Streams pipe error errno.87 is: Too many users errno.88 is: Socket operation on non-socket errno.89 is: Destination address required errno.90 is: Message too long errno.91 is: Protocol wrong type for socket errno.92 is: Protocol not available errno.93 is: Protocol not supported errno.94 is: Socket type not supported errno.95 is: Operation not supported errno.96 is: Protocol family not supported errno.97 is: Address family not supported by protocol errno.98 is: Address already in use errno.99 is: Cannot assign requested address errno.100 is: Network is down errno.101 is: Network is unreachable errno.102 is: Network dropped connection on reset errno.103 is: Software caused connection abort errno.104 is: Connection reset by peer errno.105 is: No buffer space available errno.106 is: Transport endpoint is already connected errno.107 is: Transport endpoint is not connected errno.108 is: Cannot send after transport endpoint shutdown errno.109 is: Too many references: cannot splice errno.110 is: Connection timed out errno.111 is: Connection refused errno.112 is: Host is down errno.113 is: No route to host errno.114 is: Operation already in progress errno.115 is: Operation now in progress errno.116 is: Stale NFS file handle errno.117 is: Structure needs cleaning errno.118 is: Not a XENIX named type file errno.119 is: No XENIX semaphores available errno.120 is: Is a named type file errno.121 is: Remote I/O error errno.122 is: Disk quota exceeded errno.123 is: No medium found errno.124 is: Wrong medium type errno.125 is: Operation canceled errno.126 is: Required key not available errno.127 is: Key has expired errno.128 is: Key has been revoked errno.129 is: Key was rejected by service errno.130 is: Owner died errno.131 is: State not recoverable errno.132 is: Unknown error 132 132-255全是Unknown error