HP-UX Reference (11i v1 00/12) - 2 System Calls (vol 5)

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mount(2) mount(2)

MS_BEHIND Writes to disks are to be done asynchronously, where possible,

without waiting for completion. This is the default on Series 700

systems, as it was prior to release 10.0.

MS_BEHIND and MS_DELAY are mutually exclusive.

MS_NO_FSASYNC Rigorous posting of ﬁle system metadata is to be used. This is

the default.

MS_FSASYNC Relaxed posting of ﬁle system metadata is to be used. This may

lead to better performance for certain applications; but there is

increased potential for data loss in case of a crash.

MS_FSASYNC and MS_NO_FSASYNC are mutually exclusive.

RETURN VALUE

mount() returns the following values:

0 Successful completion.

-1 Failure. errno is set to indicate the error.

ERRORS

If mount() fails, errno is set to one of the following values.

[EACCES] A component of the path preﬁx denies search permission.

[EBUSY] path is currently mounted on, is someone’s current working directory, or is otherwise

busy.

[EBUSY] The ﬁle system associated with fs is currently mounted.

[EBUSY] The system cannot allocate the necessary resources for this mount.

[EFAULT] fs, path or dataptr points outside the allocated address space of the process. The reli-

able detection of this error is implementation dependent.

[EINVAL] An argument to the system call is invalid, or a sanity check failed.

[ELOOP] Too many symbolic links were encountered in translatinga path name argument.

[ENAMETOOLONG]

The length of a path name exceeds PATH_MAX, or a path name component is longer

than NAME_MAX while _POSIX_NO_TRUNC

is in effect.

[ENODEV] fstype is a ﬁle system that is not been conﬁgured into the kernel.

[ENOENT] A named ﬁle does not exist.

[ENOENT] fs or path is null.

[ENOTBLK] fs is not a block special device and the ﬁle system type requires it to be.

[ENOTDIR] A component of a path preﬁx is not a directory.

[ENOTDIR] path is not a directory.

[ENXIO] The device associated with fs does not exist and the ﬁle system type requires it to be.

[EPERM] The process does not have the appropriate privilege and the ﬁle system type requires

it.

[EROFS] The requested ﬁle system is write protected and mﬂag requests write permission.

WARNINGS

mount() is called from the program level (i.e., not called with the mount command (see mount(1M)),

the table of mounted devices contained in /etc/mnttab is not updated. The updating of

/etc/mnttab is performed by the mount and syncer commands (see mount(1M) and syncer(1M)).