mount linux command

mount

mount [options] [special-device] [directory]

System administration command. Mount a file structure. mount announces to the system that a removable file structure is present on special-device. The file structure is mounted on directory, which must already exist and should be empty; it then becomes the name of the root of the newly mounted file structure. If mount is invoked with no arguments, it displays the name of each mounted device, the directory on which it is mounted, whether the file structure is read-only, and the date it was mounted. Only a privileged user can use the mount command.

Options

-a

Mount all filesystems listed in /etc/fstab. Note: this is the only option that cannot take a special-device or node argument.

-f

Fake mount. Go through the motions of checking the device and directory, but do not actually mount the filesystem.

-n

Do not record the mount in /etc/mtab.

-o option

Note: this is the only option to mount that requires a special-device or node argument. Qualify the mount with one of the specified options:

async

Read input and output to the device asynchronously.

auto

Allow mounting with the -a option.

defaults

Use all options' default values (async, auto, dev, exec, nouser, rw, suid).

dev

Interpret any special devices that exist on the filesystem.

exec

Allow binaries to be executed.

noauto

Do not allow mounting via the -a option.

nodev

Do not interpret any special devices that exist on the filesystem.

noexec

Do not allow the execution of binaries on the filesystem.

nosuid

Do not acknowledge any suid or sgid bits.

nouser

Only privileged users will have access to the filesystem.

remount

Expect the filesystem to have already been mounted, and remount it.

ro

Allow read-only access to the filesystem.

rw

Allow read/write access to the filesystem.

suid

Acknowledge suid and sgid bits.

sync

Read input and output to the device synchronously.

user

Allow unprivileged users to mount the filesystem. Note that the defaults on such a system will be nodev, noexec, and nosuid, unless otherwise specified.

check=relaxed|normal|strict

Specify how strictly to regulate the integration of an MS-DOS filesystem when mounting it.

conv=binary|text|auto

Specify method by which to convert files on MS-DOS and ISO 9660 filesystems.

debug

Turn debugging on for MS-DOS and ext2fs filesystems.

errors=continue|remount|ro|panic

Specify action to take when encountering an error. ext2fs filesystems only.

-r

Mount filesystem read-only.

-t type

Specify the filesystem type. Possible values are: minix, ext, ext2, xiafs, hpfs, msdos, umsdos, vfat, proc, nfs, iso9660, smbfs, ncpfs, affs, ufs, romfs, sysv, xenix, and coherent. Note that ext and xiafs are valid only for kernels older than 2.1.21 and that sysv should be used instead of xenix and coherent.

-v

Display mount information verbosely.

-w

Mount filesystem read/write. This is the default.

Files

/etc/fstab

List of filesystems to be mounted and options to use when mounting them.

/etc/mtab

List of filesystems that are currently mounted and the options with which they were mounted.