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Linux Error Number Table (errno)

These are the error numbers (errno) and their corresponding symbolic names.

While some architectures/ABIs have different number<->symbol mappings, they're equivalent on x86 (32-bit & 64-bit) and arm (32-bit & 64-bit).

For more details on errno's in general, see the errno(3) man page.

If you're writing some shell scripts, check out the errno utility.


number hex symbol description
1 0x01 EPERM Operation not permitted
2 0x02 ENOENT No such file or directory
3 0x03 ESRCH No such process
4 0x04 EINTR Interrupted system call
5 0x05 EIO Input/output error
6 0x06 ENXIO No such device or address
7 0x07 E2BIG Argument list too long
8 0x08 ENOEXEC Exec format error
9 0x09 EBADF Bad file descriptor
10 0x0a ECHILD No child processes
11 0x0b EAGAIN Resource temporarily unavailable
11 0x0b EWOULDBLOCK (Same value as EAGAIN) Resource temporarily unavailable
12 0x0c ENOMEM Cannot allocate memory
13 0x0d EACCES Permission denied
14 0x0e EFAULT Bad address
15 0x0f ENOTBLK Block device required
16 0x10 EBUSY Device or resource busy
17 0x11 EEXIST File exists
18 0x12 EXDEV Invalid cross-device link
19 0x13 ENODEV No such device
20 0x14 ENOTDIR Not a directory
21 0x15 EISDIR Is a directory
22 0x16 EINVAL Invalid argument
23 0x17 ENFILE Too many open files in system
24 0x18 EMFILE Too many open files
25 0x19 ENOTTY Inappropriate ioctl for device
26 0x1a ETXTBSY Text file busy
27 0x1b EFBIG File too large
28 0x1c ENOSPC No space left on device
29 0x1d ESPIPE Illegal seek
30 0x1e EROFS Read-only file system
31 0x1f EMLINK Too many links
32 0x20 EPIPE Broken pipe
33 0x21 EDOM Numerical argument out of domain
34 0x22 ERANGE Numerical result out of range
35 0x23 EDEADLK Resource deadlock avoided
35 0x23 EDEADLOCK (Same value as EDEADLK) Resource deadlock avoided
36 0x24 ENAMETOOLONG File name too long
37 0x25 ENOLCK No locks available
38 0x26 ENOSYS Function not implemented
39 0x27 ENOTEMPTY Directory not empty
40 0x28 ELOOP Too many levels of symbolic links
41 0x29 not implemented
42 0x2a ENOMSG No message of desired type
43 0x2b EIDRM Identifier removed
44 0x2c ECHRNG Channel number out of range
45 0x2d EL2NSYNC Level 2 not synchronized
46 0x2e EL3HLT Level 3 halted
47 0x2f EL3RST Level 3 reset
48 0x30 ELNRNG Link number out of range
49 0x31 EUNATCH Protocol driver not attached
50 0x32 ENOCSI No CSI structure available
51 0x33 EL2HLT Level 2 halted
52 0x34 EBADE Invalid exchange
53 0x35 EBADR Invalid request descriptor
54 0x36 EXFULL Exchange full
55 0x37 ENOANO No anode
56 0x38 EBADRQC Invalid request code
57 0x39 EBADSLT Invalid slot
58 0x3a not implemented
59 0x3b EBFONT Bad font file format
60 0x3c ENOSTR Device not a stream
61 0x3d ENODATA No data available
62 0x3e ETIME Timer expired
63 0x3f ENOSR Out of streams resources
64 0x40 ENONET Machine is not on the network
65 0x41 ENOPKG Package not installed
66 0x42 EREMOTE Object is remote
67 0x43 ENOLINK Link has been severed
68 0x44 EADV Advertise error
69 0x45 ESRMNT Srmount error
70 0x46 ECOMM Communication error on send
71 0x47 EPROTO Protocol error
72 0x48 EMULTIHOP Multihop attempted
73 0x49 EDOTDOT RFS specific error
74 0x4a EBADMSG Bad message
75 0x4b EOVERFLOW Value too large for defined data type
76 0x4c ENOTUNIQ Name not unique on network
77 0x4d EBADFD File descriptor in bad state
78 0x4e EREMCHG Remote address changed
79 0x4f ELIBACC Can not access a needed shared library
80 0x50 ELIBBAD Accessing a corrupted shared library
81 0x51 ELIBSCN .lib section in a.out corrupted
82 0x52 ELIBMAX Attempting to link in too many shared libraries
83 0x53 ELIBEXEC Cannot exec a shared library directly
84 0x54 EILSEQ Invalid or incomplete multibyte or wide character
85 0x55 ERESTART Interrupted system call should be restarted
86 0x56 ESTRPIPE Streams pipe error
87 0x57 EUSERS Too many users
88 0x58 ENOTSOCK Socket operation on non-socket
89 0x59 EDESTADDRREQ Destination address required
90 0x5a EMSGSIZE Message too long
91 0x5b EPROTOTYPE Protocol wrong type for socket
92 0x5c ENOPROTOOPT Protocol not available
93 0x5d EPROTONOSUPPORT Protocol not supported
94 0x5e ESOCKTNOSUPPORT Socket type not supported
95 0x5f EOPNOTSUPP Operation not supported
95 0x5f ENOTSUP (Same value as EOPNOTSUPP) Operation not supported
96 0x60 EPFNOSUPPORT Protocol family not supported
97 0x61 EAFNOSUPPORT Address family not supported by protocol
98 0x62 EADDRINUSE Address already in use
99 0x63 EADDRNOTAVAIL Cannot assign requested address
100 0x64 ENETDOWN Network is down
101 0x65 ENETUNREACH Network is unreachable
102 0x66 ENETRESET Network dropped connection on reset
103 0x67 ECONNABORTED Software caused connection abort
104 0x68 ECONNRESET Connection reset by peer
105 0x69 ENOBUFS No buffer space available
106 0x6a EISCONN Transport endpoint is already connected
107 0x6b ENOTCONN Transport endpoint is not connected
108 0x6c ESHUTDOWN Cannot send after transport endpoint shutdown
109 0x6d ETOOMANYREFS Too many references: cannot splice
110 0x6e ETIMEDOUT Connection timed out
111 0x6f ECONNREFUSED Connection refused
112 0x70 EHOSTDOWN Host is down
113 0x71 EHOSTUNREACH No route to host
114 0x72 EALREADY Operation already in progress
115 0x73 EINPROGRESS Operation now in progress
116 0x74 ESTALE Stale file handle
117 0x75 EUCLEAN Structure needs cleaning
118 0x76 ENOTNAM Not a XENIX named type file
119 0x77 ENAVAIL No XENIX semaphores available
120 0x78 EISNAM Is a named type file
121 0x79 EREMOTEIO Remote I/O error
122 0x7a EDQUOT Disk quota exceeded
123 0x7b ENOMEDIUM No medium found
124 0x7c EMEDIUMTYPE Wrong medium type
125 0x7d ECANCELED Operation canceled
126 0x7e ENOKEY Required key not available
127 0x7f EKEYEXPIRED Key has expired
128 0x80 EKEYREVOKED Key has been revoked
129 0x81 EKEYREJECTED Key was rejected by service
130 0x82 EOWNERDEAD Owner died
131 0x83 ENOTRECOVERABLE State not recoverable
132 0x84 ERFKILL Operation not possible due to RF-kill
133 0x85 EHWPOISON Memory page has hardware error