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 /var 可以解决

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

windows的错误码信息

Number	Macro	Description
1	ERROR_INVALID_FUNCTION	Incorrect function.
2	ERROR_FILE_NOT_FOUND	The system cannot find the file specified.
3	ERROR_PATH_NOT_FOUND	The system cannot find the path specified.
4	ERROR_TOO_MANY_OPEN_FILES	The system cannot open the file.
5	ERROR_ACCESS_DENIED	Access is denied.
6	ERROR_INVALID_HANDLE	The handle is invalid.
7	ERROR_ARENA_TRASHED	The storage control blocks were destroyed.
8	ERROR_NOT_ENOUGH_MEMORY	Not enough storage is available to process this command.
9	ERROR_INVALID_BLOCK	The storage control block address is invalid.
10	ERROR_BAD_ENVIRONMENT	The environment is incorrect.
11	ERROR_BAD_FORMAT	An attempt was made to load a program with an incorrect format.
12	ERROR_INVALID_ACCESS	The access code is invalid.
13	ERROR_INVALID_DATA	The data is invalid.
14	ERROR_OUTOFMEMORY	Not enough storage is available to complete this operation.
15	ERROR_INVALID_DRIVE	The system cannot find the drive specified.
16	ERROR_CURRENT_DIRECTORY	The directory cannot be removed.
17	ERROR_NOT_SAME_DEVICE	The system cannot move the file to a different disk drive.
18	ERROR_NO_MORE_FILES	There are no more files.
19	ERROR_WRITE_PROTECT	The media is write protected.
20	ERROR_BAD_UNIT	The system cannot find the device specified.
21	ERROR_NOT_READY	The device is not ready.
22	ERROR_BAD_COMMAND	The device does not recognize the command.
23	ERROR_CRC	Data error (cyclic redundancy check).
24	ERROR_BAD_LENGTH	The program issued a command but the command length is incorrect.
25	ERROR_SEEK	The drive cannot locate a specific area or track on the disk.
26	ERROR_NOT_DOS_DISK	The specified disk or diskette cannot be accessed.
27	ERROR_SECTOR_NOT_FOUND	The drive cannot find the sector requested.
28	ERROR_OUT_OF_PAPER	The printer is out of paper.
29	ERROR_WRITE_FAULT	The system cannot write to the specified device.
30	ERROR_READ_FAULT	The system cannot read from the specified device.
31	ERROR_GEN_FAILURE	A device attached to the system is not functioning.
32	ERROR_SHARING_VIOLATION	The process cannot access the file because it is being used by another process.
33	ERROR_LOCK_VIOLATION	The process cannot access the file because another process has locked a portion of the file.
34	ERROR_WRONG_DISK	The wrong diskette is in the drive. Insert %2 (Volume Serial Number: %3) into drive %1.
36	ERROR_SHARING_BUFFER_EXCEEDED	Too many files opened for sharing.
38	ERROR_HANDLE_EOF	Reached the end of the file.
39	ERROR_HANDLE_DISK_FULL	The disk is full.
87	ERROR_INVALID_PARAMETER	The parameter is incorrect.
112	ERROR_DISK_FULL	The disk is full.
123	ERROR_INVALID_NAME	The file name, directory name, or volume label syntax is incorrect.
1450	ERROR_NO_SYSTEM_RESOURCES	Insufficient system resources exist to complete the requested service