EXFAT.UTIL(8) | System Manager's Manual | EXFAT.UTIL(8) |
exfat.util
— ExFAT
file system utility
exfat.util |
-p device removable
writable |
exfat.util |
-k device |
exfat.util |
-s device |
exfat.util |
-m device directory removable
writable nosuid nodev |
exfat.util |
-u device |
The exfat.util
command supports the
probing of ExFAT file systems, and getting or setting a volume UUID.
Options:
-p
device removable writable-k
devicedevice may be mounted or unmounted. If
it is mounted, the UUID is obtained through the file system using the
getattrlist(2) call. If the
device is not mounted, exfat.util
reads from the
device directly.
-s
device-m
device directory removable writable nosuid nodevremovable
if the device
is removable, or fixed
otherwise. The actual
argument value is currently ignored. The writable
argument must be either readonly
or
writable
which mounts the volume read-only or
read/write, respectively. The nosuid argument must
be either suid
or nosuid
.
That argument is passed as a mount option. The nodev
argument must be either dev
or
nodev
. That argument is passed as a mount
option.-u
deviceThe exfat.util
command is installed in the
/System/Library/Filesystems/exfat.fs/Contents/Resources
directory, which is typically not in a shell's search path.
The -m
and -u
options are deprecated. The preferred way to mount an ExFAT volume is to let
diskarbitrationd(8) mount it
automatically when the device is discovered, or use the
diskutil(8) command to explicitly
mount a device. You may also use the
mount(8) or
mount_exfat(8) commands directly.
The preferred way to unmount an ExFAT volume is with the
diskutil(8) command. Note that using
the umount(8) command usually will not
work because various process are likely to have open files, which will
prevent the unmount. The diskutil(8)
command will send a notification that causes many such processes to close
their open files so that the unmount will succeed.
mount_exfat(8), fsck_exfat(8), diskarbitrationd(8,) diskutil(8), uuid(3,) uuid_unparse(3), uuid_generate(3), getattrlist(2)
The exfat.util
utility first appeared in
Mac OS X 10.6.3.
The choice of non-zero exit status to indicate success was an unfortunate design decision.
The -u
option usually does not work since
several processes in Mac OS X leave files open on mounted volumes, thus
preventing the unmount. The
diskutil(8) command is preferred for
unmounting.
January 19, 2010 | Darwin |