MOUNT(2) System Calls Manual MOUNT(2)NAME
mount, umount - mount or remove file system
SYNOPSIS
mount(special, name, rwflag)
char *special, *name;
umount(special)
char *special;
DESCRIPTION
Mount announces to the system that a removable file system has been mounted on the block-structured special file special; from now on, ref-
erences to file name will refer to the root file on the newly mounted file system. Special and name are pointers to null-terminated
strings containing the appropriate path names.
Name must exist already. Name must be a directory (unless the root of the mounted file system is not a directory). Its old contents are
inaccessible while the file system is mounted.
The rwflag argument determines whether the file system can be written on; if it is 0 writing is allowed, if non-zero no writing is done.
Physically write-protected and magnetic tape file systems must be mounted read-only or errors will occur when access times are updated,
whether or not any explicit write is attempted.
Umount announces to the system that the special file is no longer to contain a removable file system. The associated file reverts to its
ordinary interpretation.
SEE ALSO mount(1)DIAGNOSTICS
Mount returns 0 if the action occurred; -1 if special is inaccessible or not an appropriate file; if name does not exist; if special is
already mounted; if name is in use; or if there are already too many file systems mounted.
Umount returns 0 if the action occurred; -1 if if the special file is inaccessible or does not have a mounted file system, or if there are
active files in the mounted file system.
ASSEMBLER
(mount = 21.)
sys mount; special; name; rwflag
(umount = 22.)
sys umount; special
MOUNT(2)
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MOUNT(2) System Calls Manual MOUNT(2)NAME
mount, umount - mount or umount a file system
SYNOPSIS
#include <unistd.h>
#include <sys/mount.h>
int mount(char *special, char *name, int flag)
int umount(char *name)
DESCRIPTION
Mount() tells the system that the file system special is to be mounted on the file name, effectively overlaying name with the file tree on
special. Name may of any type, except that if the root of special is a directory, then name must also be a directory. Special must be a
block special file, except for loopback mounts. For loopback mounts a normal file or directory is used for special, which must be seen as
the root of a virtual device. Flag is 0 for a read-write mount, 1 for read-only.
Umount() removes the connection between a device and a mount point, name may refer to either of them. If more than one device is mounted
on the same mount point then unmounting at the mount point removes the last mounted device, unmounting a device removes precisely that
device. The unmount will only succeed if none of the files on the device are in use.
Both calls may only be executed by the super-user.
SEE ALSO mount(1), umount(1).
AUTHOR
Kees J. Bot (kjb@cs.vu.nl)
MOUNT(2)
Hi all,
I've got a couple of directorys with special chars in the name:
# ls -q
personnel?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D?[D
unilive_?[B?[H?[L?[F?[L?[L?[Lpwd
I do not know how to get into these... (6 Replies)
I have file special.txt with the following data.
<header info>
123$ty5%98&0asd
1@356fgbv78
09*&^5jkns43(
...........some more rows.
In my output file, I want to eliminate all the special characters in my file and I want all other data. need some help. (6 Replies)
Hi all,
I want to take the details of all mounted directories.Some thing like using bdf we can get the information.
My code should get the information about the mounted directories and should write into a file.
What we are going to do is we are going to shutdown our HP unix server... (12 Replies)
Hi all
Is it ok to umount the / (root) file system?
Because recently i had extend the swap space by add the cylinders,
now only found that the cylinders is overlap with the root. Is it ok for future server operation?
partition> print
Current partition table (original):
Total disk... (6 Replies)
Dear all,
Currently I'm working on a C program (OS = ubuntu 9.0.4)in which a USB key will
be mounted and umounted for several times. I read the man page
of the mount system call.
I use the following test code
#include <sys/mount.h>
int main(int argc, char *argv)
{
if... (5 Replies)
Dear Friends,
I want to remove text between two patters.
Problem is, it has random special characters like \ / | * ` ~ ! $ etc.
These random special characters has no fixed length. But these special characters are appearing between a fixed pattern
e.g.
DM&^%#|#!\/?CT
Expected output... (14 Replies)
Hello,
I have some data in output file.In that i need to split the special char "(" and ")" and store it.
This is example of o/p file.
(OHC12345)
(OHC12415)
(OHC12765)
(OHC12545)
I need like
OHC12345
OHC12415
OHC12765
OHC12545
--Thanks (5 Replies)
hi guys
I have to umount a CIFS from a Windows machine...but it's been imposible
there is one special task
/sbin/umount.cifs /mondobackup
that task cannot be kill...so I cannot umount the unit
any idea how to kill this and umount this CIFS share?
by the way I've tried
umount... (5 Replies)
I have some questions:
1, I successfully mounted my usb drive with "sudo mount /dev/sdb1 /mnt", but I can't wirte, It says "read-only file system". But I can write it in windows.
2, After I umounted the usb drive the led of it still on, but not blinking. Is it safe to unplug it? How to let it's... (17 Replies)
Hi folks,
I am on a very critical situation. I have a sun Solaris 10 MC with oracle 10G installed on it.
When i try to mount the DB, I can mount it, But when I try to access it, the DB is inaccessible.
SQL> select status from v$instance;
STATUS
------------
MOUNTED
SQL> shutdown... (6 Replies)
Hi,
I know something about file system that its a directory to hold files.
My query is how to identify file system is mounted or not .Can you give me some examples?
OS --- Linux 2.6 (7 Replies)
Hello, today i get some aix errors (can't lock files and strange things) then i umount FS to do a fsck but i get these errors
root@omega / > fsck -p /dev/fslv06
The current volume is: /dev/fslv06
Unable to read primary superblock.
Unable to read either superblock.
I readed on this page... (9 Replies)
Hi Folks,
Could anyone please assist me with the what could be the scenarios to test the file system mount/umount performance check in HPUX.
Thanks in advance,
Vaishey (5 Replies)