Linux Standard Base Core Specification 3.0Preview1 | ||
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As described in ISO POSIX (2003), all files in the system are organized in a directed graph, known as the file hierarchy, rooted at /. These files can be spread out over several underlying devices. The mount command shall attach the file system found on some underlying device to the file hierarchy.
invoke verbose mode. The mount command shall provide diagnostic
messages on stdout
.
mount all filesystems (of the given types) mentioned in /etc/fstab.
If the -a option is also present, fork a new incarnation of mount for each device to be mounted. This will do the mounts on different devices or different NFS servers in parallel.
cause everything to be done except for the actual system call; if it's not obvious, this `fakes' mounting the file system.
mount without writing in /etc/mtab. This is necessary for example when /etc is on a read-only file system.
ignore mount options not supported by a filesystem type. Not all filesystems support this option.
mount the file system read-only. A synonym is -o ro.
mount the file system read/write. (default) A synonym is -o rw.
If the file /proc/partitions is supported, mount the partition that has the specified label.
If the file /proc/partitions is supported, mount the partition that has the specified uuid.
indicate a file system type of vfstype.
More than one type may be specified in a comma separated list. The list of file system types can be prefixed with no to specify the file system types on which no action should be taken.
options are specified with a -o flag followed by a comma-separated string of options. Some of these options are only useful when they appear in the /etc/fstab file. The following options apply to any file system that is being mounted:
perform all I/O to the file system asynchronously.
update inode access time for each access. (default)
in /etc/fstab, indicate the device is mountable with -a.
use default options: rw, suid, dev, exec, auto, nouser, async.
interpret character or block special devices on the file system.
permit execution of binaries.
do not update file access times on this file system.
in /etc/fstab, indicates the device is only explicitly mountable.
do not interpret character or block special devices on the file system.
do not allow execution of any binaries on the mounted file system.
do not allow set-user-identifier or set-group-identifier bits to take effect.
forbid an unprivileged user to mount the file system. (default)
remount an already-mounted file system. This is commonly used to change the mount options for a file system, especially to make a read-only file system writable.
mount the file system read-only.
mount the file system read-write.
allow set-user-identifier or set-group-identifier bits to take effect.
do all I/O to the file system synchronously.
allow an unprivilieged user to mount the file system. This option implies the options noexec, nosuid, nodev unless overridden by subsequent options.
The behaviors specified in this section are expected to disappear from a future version of the LSB; applications should only use the non-LSB-deprecated behaviors.
output version and exit.
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