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Annotation of cci/usr/src/man/man2/mount.2, revision 1.1

1.1     ! root        1: .TH MOUNT 2 "27 July 1983"
        !             2: .UC 4
        !             3: .SH NAME
        !             4: mount, umount \- mount or remove file system
        !             5: .SH SYNOPSIS
        !             6: .nf
        !             7: .ft B
        !             8: mount(special, name, rwflag)
        !             9: char *special, *name;
        !            10: int rwflag;
        !            11: .PP
        !            12: .ft B
        !            13: umount(special)
        !            14: char *special;
        !            15: .fi
        !            16: .SH DESCRIPTION
        !            17: .I Mount
        !            18: announces to the system that a removable file system has
        !            19: been mounted on
        !            20: the block-structured special file
        !            21: .I special;
        !            22: from now on, references to file
        !            23: .I name
        !            24: will refer to
        !            25: the root file on the newly mounted file system.
        !            26: .I Special
        !            27: and
        !            28: .I name
        !            29: are pointers to null-terminated strings
        !            30: containing the appropriate path names.
        !            31: .PP
        !            32: .I Name
        !            33: must exist already. 
        !            34: .I Name
        !            35: must be a directory.
        !            36: Its old contents
        !            37: are inaccessible while the file system
        !            38: is mounted.
        !            39: .PP
        !            40: The
        !            41: .I rwflag
        !            42: argument determines whether
        !            43: the file system can be written on; if it is 0 writing
        !            44: is allowed, if non-zero no writing is done.
        !            45: Physically write-protected and magnetic
        !            46: tape file systems must be mounted read-only or
        !            47: errors will occur when access times are updated,
        !            48: whether or not any
        !            49: explicit write or file removal is attempted.
        !            50: Setting the write-protected button alone is not 
        !            51: sufficient to notify the system of the intent.
        !            52: .PP
        !            53: .I Umount
        !            54: announces to the system that the
        !            55: .I special
        !            56: file is no longer to contain a removable file system.
        !            57: The associated file reverts to its ordinary interpretation.
        !            58: .SH "RETURN VALUE
        !            59: .I Mount
        !            60: returns 0 if the action occurred, \-1 if
        !            61: .I special
        !            62: is inaccessible or not an appropriate file, if
        !            63: .I name
        !            64: does not exist, if
        !            65: .I special
        !            66: is already mounted, if
        !            67: .I name
        !            68: is in use, or if
        !            69: there are already too many
        !            70: file systems mounted.
        !            71: .PP
        !            72: .I Umount
        !            73: returns 0 if the action occurred; \-1 if
        !            74: if the special file is inaccessible or
        !            75: does not have a mounted file system,
        !            76: or if there are active files in the mounted 
        !            77: file system.
        !            78: .SH ERRORS
        !            79: .I Mount
        !            80: will fail when one of the following occurs:
        !            81: .TP 15
        !            82: [NODEV]
        !            83: The caller is not the super-user.
        !            84: .TP 15
        !            85: [NODEV]
        !            86: .I Special
        !            87: does not exist.
        !            88: .TP 15
        !            89: [ENOTBLK]
        !            90: .I Special
        !            91: is not a block device.
        !            92: .TP 15
        !            93: [ENXIO]
        !            94: The major device number of 
        !            95: .I special
        !            96: is out of range (this indicates no device driver exists
        !            97: for the associated hardware).
        !            98: .TP 15
        !            99: [EPERM]
        !           100: The pathname contains a character with the high-order bit set.
        !           101: .TP 15
        !           102: [ENOTDIR]
        !           103: A component of the path prefix in
        !           104: .I name
        !           105: is not a directory.
        !           106: .TP 15
        !           107: [EROFS]
        !           108: .I Name
        !           109: resides on a read-only file system.
        !           110: .TP 15
        !           111: [EBUSY]
        !           112: .I Name
        !           113: is not a directory, or another process currently
        !           114: holds a reference to it.
        !           115: .TP 15
        !           116: [EBUSY]
        !           117: No space remains in the mount table.
        !           118: .TP 15
        !           119: [EBUSY]
        !           120: The super block for the file system had a bad magic
        !           121: number or an out of range block size.
        !           122: .TP 15
        !           123: [EBUSY]
        !           124: Not enough memory was available to read the cylinder
        !           125: group information for the file system.
        !           126: .TP 15
        !           127: [EBUSY]
        !           128: An i/o error occurred while reading the super block or
        !           129: cylinder group information.
        !           130: .PP
        !           131: .I Umount
        !           132: may fail with one of the following errors:
        !           133: .TP 15
        !           134: [NODEV]
        !           135: The caller is not the super-user.
        !           136: .TP 15
        !           137: [NODEV]
        !           138: .I Special
        !           139: does not exist.
        !           140: .TP 15
        !           141: [ENOTBLK]
        !           142: .I Special
        !           143: is not a block device.
        !           144: .TP 15
        !           145: [ENXIO]
        !           146: The major device number of 
        !           147: .I special
        !           148: is out of range (this indicates no device driver exists
        !           149: for the associated hardware).
        !           150: .TP 15
        !           151: [EINVAL]
        !           152: The requested device is not in the mount table.
        !           153: .TP 15
        !           154: [EBUSY]
        !           155: A process is holding a reference to a file located
        !           156: on the file system.
        !           157: .SH "SEE ALSO"
        !           158: mount(8), umount(8)
        !           159: .SH BUGS
        !           160: The error codes are in a state of disarray; too many errors
        !           161: appear to the caller as one value.

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