a2p
accept
access
acct
addftinfo
addr2line
adjtime
afmtodit
after
aio_cancel
aio_error
aio_read
aio_return
aio_suspend
aio_waitcomplete
aio_write
alias
aliases
alloc
anvil
append
apply
apropos
ar
array
as
asa
asn1parse
at
atq
atrm
attemptckalloc
attemptckrealloc
authlib
authtest
autopoint
awk
b64decode
b64encode
basename
batch
bc
bdes
bell
bg
bgerror
biff
big5
binary
bind
bindkey
bindtags
bindtextdomain
bio
bitmap
blowfish
bn
bootparams
bootptab
bounce
brandelf
break
breaksw
brk
bsdiff
bsdtar
bsnmpd
bspatch
bthost
btsockstat
buffer
builtin
builtins
bunzip2
button
byacc
bzcat
bzegrep
bzfgrep
bzgrep
bzip2
c2ph
c89
c99
ca
cal
calendar
canvas
cap_mkdb
case
cat
catch
catman
cc
cd
cdcontrol
chdir
checkbutton
checknr
chflags
chfn
chgrp
chio
chkey
chmod
chown
chpass
chroot
chsh
ci
ciphers
ckalloc
ckdist
ckfree
ckrealloc
cksum
cleanup
clear
clipboard
clock
clock_getres
clock_gettime
clock_settime
close
cmp
co
col
colcrt
colldef
colors
colrm
column
comm
command
compile_et
complete
compress
concat
config
connect
console
continue
core
courierlogger
couriertcpd
cp
cpan
cpio
cpp
creat
crl
crontab
crunchgen
crunchide
crypt
crypto
csh
csplit
ctags
ctm
ctm_dequeue
ctm_rmail
ctm_smail
cu
cursor
cursors
cut
cvs
date
dbiprof
dbiproxy
dc
dcgettext
dcngettext
dd
dde
default
defer
deliverquota
des
destroy
devfs
df
dgettext
dgst
dh
dhparam
dialog
diff
diff3
dig
dir
dirent
dirname
dirs
discard
disktab
dngettext
do
domainname
done
dprofpp
dsa
dsaparam
dtmfdecode
du
dup
dup2
eaccess
ec
ecdsa
echo
echotc
ecparam
ed
edit
editrc
ee
egrep
elf
elfdump
elif
else
enc
enc2xs
encoding
end
endif
endsw
engine
enigma
entry
env
envsubst
eof
eqn
err
errno
error
errstr
esac
ethers
euc
eui64
eval
event
evp
ex
exec
execve
exit
expand
export
exports
expr
extattr
extattr_delete_fd
extattr_delete_file
extattr_get_fd
extattr_get_file
extattr_set_fd
extattr_set_file
f77
false
famm
famx
fblocked
fbtab
fc
fchdir
fchflags
fchmod
fchown
fcntl
fconfigure
fcopy
fdescfs
fdformat
fdread
fdwrite
fetch
fg
fgrep
fhopen
fhstat
fhstatfs
fi
file
file2c
fileevent
filename
filetest
find
find2perl
finger
flex
flock
flush
fmt
focus
fold
font
fontedit
for
foreach
fork
format
forward
fpathconf
frame
from
fs
fstab
fstat
fstatfs
fsync
ftp
ftpchroot
ftpusers
ftruncate
futimes
g711conv
gb2312
gb18030
gbk
gcc
gcore
gcov
gdb
gencat
gendsa
genrsa
gensnmptree
getconf
getdents
getdirentries
getdtablesize
getegid
geteuid
getfacl
getfh
getfsstat
getgid
getgroups
getitimer
getlogin
getopt
getopts
getpeername
getpgid
getpgrp
getpid
getppid
getpriority
getresgid
getresuid
getrlimit
getrusage
gets
getsid
getsockname
getsockopt
gettext
gettextize
gettimeofday
gettytab
getuid
glob
global
gmake
goto
gperf
gprof
grab
grep
grid
grn
grodvi
groff
groff_font
groff_out
groff_tmac
grog
grolbp
grolj4
grops
grotty
group
groups
gunzip
gzcat
gzexe
gzip
h2ph
h2xs
hash
hashstat
hd
head
help2man
hesinfo
hexdump
history
host
hostname
hosts
hosts_access
hosts_options
hpftodit
http
hup
i386_get_ioperm
i386_get_ldt
i386_set_ioperm
i386_set_ldt
i386_vm86
iconv
id
ident
idprio
if
ifnames253
ifnames259
image
imapd
incr
indent
indxbib
info
infokey
inode
install
instmodsh
interp
intro
introduction
ioctl
ipcrm
ipcs
ipf
ipftest
ipnat
ippool
ipresend
issetugid
jail
jail_attach
jobid
jobs
join
jot
kbdcontrol
kbdmap
kcon
kdestroy
kdump
kenv
kevent
keycap
keylogin
keylogout
keymap
keysyms
kgdb
kill
killall
killpg
kinit
kldfind
kldfirstmod
kldload
kldnext
kldstat
kldsym
kldunload
klist
kpasswd
kqueue
kse
kse_create
kse_exit
kse_release
kse_switchin
kse_thr_interrupt
kse_wakeup
ktrace
label
labelframe
lam
lappend
last
lastcomm
lastlog
lchflags
lchmod
lchown
ld
ldap
ldapadd
ldapcompare
ldapdelete
ldapmodify
ldapmodrdn
ldappasswd
ldapsearch
ldapwhoami
ldd
leave
less
lesskey
lex
lgetfh
lhash
libnetcfg
library
limit
limits
lindex
link
linprocfs
linsert
lint
lio_listio
list
listbox
listen
lj4_font
lkbib
llength
lmtp
ln
load
loadfont
local
locale
locate
lock
lockf
log
logger
login
logins
logname
logout
look
lookbib
lorder
lower
lp
lpq
lpr
lprm
lptest
lrange
lreplace
ls
lsearch
lseek
lset
lsort
lstat
lsvfs
lutimes
lynx
m4
madvise
magic
mail
maildiracl
maildirkw
maildirmake
mailq
mailx
make
makeinfo
makewhatis
man
manpath
master
mc
mcedit
mcview
md2
md4
md5
mdc2
memory
menu
menubar
menubutton
merge
mesg
message
mincore
minherit
minigzip
mkdep
mkdir
mkfifo
mkimapdcert
mklocale
mknod
mkpop3dcert
mkstr
mktemp
mlock
mlockall
mmap
mmroff
modfind
modfnext
modnext
modstat
moduli
more
motd
mount
mprotect
mptable
msdos
msdosfs
msgattrib
msgcat
msgcmp
msgcomm
msgconv
msgen
msgexec
msgfilter
msgfmt
msggrep
msginit
msgmerge
msgs
msgunfmt
msguniq
mskanji
msql2mysql
msync
mt
munlock
munlockall
munmap
mv
myisamchk
myisamlog
myisampack
mysql
mysqlaccess
mysqladmin
mysqlbinlog
mysqlcheck
mysqld
mysqldump
mysqld_multi
mysqld_safe
mysqlhotcopy
mysqlimport
mysqlshow
mysql_config
mysql_fix_privilege_tables
mysql_zap
namespace
nanosleep
nawk
nc
ncal
ncplist
ncplogin
ncplogout
neqn
netconfig
netgroup
netid
netstat
networks
newaliases
newgrp
nex
nfsstat
nfssvc
ngettext
nice
nl
nm
nmount
nohup
nologin
notify
nroff
nseq
nslookup
ntp_adjtime
ntp_gettime
nvi
nview
objcopy
objdump
objformat
ocsp
od
onintr
open
openssl
opieaccess
opieinfo
opiekey
opiekeys
opiepasswd
option
options
oqmgr
pack
package
packagens
pagesize
palette
pam_auth
panedwindow
parray
passwd
paste
patch
pathchk
pathconf
pawd
pax
pbm
pcre
pcreapi
pcrebuild
pcrecallout
pcrecompat
pcrecpp
pcregrep
pcrematching
pcrepartial
pcrepattern
pcreperform
pcreposix
pcreprecompile
pcresample
pcretest
perl
perl56delta
perl58delta
perl561delta
perl570delta
perl571delta
perl572delta
perl573delta
perl581delta
perl582delta
perl583delta
perl584delta
perl585delta
perl586delta
perl587delta
perl588delta
perl5004delta
perl5005delta
perlaix
perlamiga
perlapi
perlapio
perlapollo
perlartistic
perlbeos
perlbook
perlboot
perlbot
perlbs2000
perlbug
perlcall
perlcc
perlce
perlcheat
perlclib
perlcn
perlcompile
perlcygwin
perldata
perldbmfilter
perldebguts
perldebtut
perldebug
perldelta
perldgux
perldiag
perldoc
perldos
perldsc
perlebcdic
perlembed
perlepoc
perlfaq
perlfaq1
perlfaq2
perlfaq3
perlfaq4
perlfaq5
perlfaq6
perlfaq7
perlfaq8
perlfaq9
perlfilter
perlfork
perlform
perlfreebsd
perlfunc
perlglossary
perlgpl
perlguts
perlhack
perlhist
perlhpux
perlhurd
perlintern
perlintro
perliol
perlipc
perlirix
perlivp
perljp
perlko
perllexwarn
perllinux
perllocale
perllol
perlmachten
perlmacos
perlmacosx
perlmint
perlmod
perlmodinstall
perlmodlib
perlmodstyle
perlmpeix
perlnetware
perlnewmod
perlnumber
perlobj
perlop
perlopenbsd
perlopentut
perlos2
perlos390
perlos400
perlothrtut
perlpacktut
perlplan9
perlpod
perlpodspec
perlport
perlqnx
perlre
perlref
perlreftut
perlrequick
perlreref
perlretut
perlrun
perlsec
perlsolaris
perlstyle
perlsub
perlsyn
perlthrtut
perltie
perltoc
perltodo
perltooc
perltoot
perltrap
perltru64
perltw
perlunicode
perluniintro
perlutil
perluts
perlvar
perlvmesa
perlvms
perlvos
perlwin32
perlxs
perlxstut
perror
pfbtops
pftp
pgrep
phones
photo
pic
pickup
piconv
pid
pipe
pkcs7
pkcs8
pkcs12
pkg_add
pkg_check
pkg_create
pkg_delete
pkg_info
pkg_sign
pkg_version
pkill
pl2pm
place
pod2html
pod2latex
pod2man
pod2text
pod2usage
podchecker
podselect
poll
popd
popup
posix_madvise
postalias
postcat
postconf
postdrop
postfix
postkick
postlock
postlog
postmap
postqueue
postsuper
pr
pread
preadv
printcap
printenv
printf
proc
procfs
profil
protocols
prove
proxymap
ps
psed
psroff
pstruct
ptrace
publickey
pushd
puts
pwd
pwrite
pwritev
qmgr
qmqpd
quota
quotactl
radiobutton
raise
rand
ranlib
rcp
rcs
rcsclean
rcsdiff
rcsfile
rcsfreeze
rcsintro
rcsmerge
read
readelf
readlink
readonly
readv
realpath
reboot
recv
recvfrom
recvmsg
red
ree
refer
regexp
registry
regsub
rehash
remote
rename
repeat
replace
req
reset
resolver
resource
return
rev
revoke
rfcomm_sppd
rfork
rhosts
ripemd
ripemd160
rlog
rlogin
rm
rmd160
rmdir
rpc
rpcgen
rs
rsa
rsautl
rsh
rtld
rtprio
rup
ruptime
rusers
rwall
rwho
s2p
safe
sasl
sasldblistusers2
saslpasswd2
sbrk
scache
scale
scan
sched
sched_getparam
sched_getscheduler
sched_get_priority_max
sched_get_priority_min
sched_rr_get_interval
sched_setparam
sched_setscheduler
sched_yield
scon
scp
script
scrollbar
sdiff
sed
seek
select
selection
semctl
semget
semop
send
sendbug
sendfile
sendmail
sendmsg
sendto
services
sess_id
set
setegid
setenv
seteuid
setfacl
setgid
setgroups
setitimer
setlogin
setpgid
setpgrp
setpriority
setregid
setresgid
setresuid
setreuid
setrlimit
setsid
setsockopt
settc
settimeofday
setty
setuid
setvar
sftp
sh
sha
sha1
sha256
shar
shells
shift
shmat
shmctl
shmdt
shmget
showq
shutdown
sigaction
sigaltstack
sigblock
sigmask
sigpause
sigpending
sigprocmask
sigreturn
sigsetmask
sigstack
sigsuspend
sigvec
sigwait
size
slapadd
slapcat
slapd
slapdn
slapindex
slappasswd
slaptest
sleep
slogin
slurpd
smbutil
smime
smtp
smtpd
socket
socketpair
sockstat
soelim
sort
source
spawn
speed
spinbox
spkac
splain
split
squid
squid_ldap_auth
squid_ldap_group
squid_unix_group
sscop
ssh
sshd_config
ssh_config
stab
startslip
stat
statfs
stop
string
strings
strip
stty
su
subst
sum
suspend
swapoff
swapon
switch
symlink
sync
sysarch
syscall
sysconftool
sysconftoolcheck
systat
s_client
s_server
s_time
tabs
tail
talk
tar
tbl
tclsh
tcltest
tclvars
tcopy
tcpdump
tcpslice
tcsh
tee
tell
telltc
telnet
term
termcap
terminfo
test
texindex
texinfo
text
textdomain
tfmtodit
tftp
then
threads
time
tip
tk
tkerror
tkvars
tkwait
tlsmgr
tmac
top
toplevel
touch
tput
tr
trace
trafshow
trap
troff
true
truncate
truss
tset
tsort
tty
ttys
type
tzfile
ui
ul
ulimit
umask
unalias
uname
uncomplete
uncompress
undelete
unexpand
unhash
unifdef
unifdefall
uniq
units
unknown
unlimit
unlink
unmount
unset
unsetenv
until
unvis
update
uplevel
uptime
upvar
usbhidaction
usbhidctl
users
utf8
utimes
utmp
utrace
uudecode
uuencode
uuidgen
vacation
variable
verify
version
vfork
vgrind
vgrindefs
vi
vidcontrol
vidfont
view
virtual
vis
vt220keys
vwait
w
wait
wait3
wait4
waitpid
wall
wc
wget
what
whatis
where
whereis
which
while
who
whoami
whois
window
winfo
wish
wm
write
writev
wtmp
x509
xargs
xgettext
xmlwf
xstr
xsubpp
yacc
yes
ypcat
ypchfn
ypchpass
ypchsh
ypmatch
yppasswd
ypwhich
yyfix
zcat
zcmp
zdiff
zegrep
zfgrep
zforce
zgrep
zmore
znew
_exit
__syscall
 
FreeBSD/Linux/UNIX General Commands Manual
Hypertext Man Pages
mount
 
MOUNT(8)		FreeBSD System Manager's Manual 	      MOUNT(8)

NAME
     mount -- mount file systems

SYNOPSIS
     mount [-adfpruvw] [-F fstab] [-o options] [-t ufs | external_type]
     mount [-dfpruvw] special | node
     mount [-dfpruvw] [-o options] [-t ufs | external_type] special node

DESCRIPTION
     The mount utility calls the mount(2) system call to prepare and graft a
     special device or the remote node (rhost:path) on to the file system tree
     at the point node.  If either special or node are not provided, the
     appropriate information is taken from the fstab(5) file.

     The system maintains a list of currently mounted file systems.  If no
     arguments are given to mount, this list is printed.

     The options are as follows:

     -a      All the file systems described in fstab(5) are mounted.  Excep-
	     tions are those marked as ``noauto'', excluded by the -t flag
	     (see below), or if they are already mounted (except the root file
	     system which is always remounted to preserve traditional single
	     user mode behavior).

     -d      Causes everything to be done except for the actual system call.
	     This option is useful in conjunction with the -v flag to deter-
	     mine what the mount command is trying to do.

     -F fstab
	     Specify the fstab file to use.

     -f      Forces the revocation of write access when trying to downgrade a
	     file system mount status from read-write to read-only.  Also
	     forces the R/W mount of an unclean file system (dangerous; use
	     with caution).

     -o      Options are specified with a -o flag followed by a comma sepa-
	     rated string of options.  In case of conflicting options being
	     specified, the rightmost option takes effect.  The following
	     options are available:

	     acls    Enable Access Control Lists, or ACLS, which can be cus-
		     tomized via the setfacl(1) and getfacl(1) commands.

	     async   All I/O to the file system should be done asynchronously.
		     This is a dangerous flag to set, and should not be used
		     unless you are prepared to recreate the file system
		     should your system crash.

	     current
		     When used with the -u flag, this is the same as specify-
		     ing the options currently in effect for the mounted file
		     system.

	     force   The same as -f; forces the revocation of write access
		     when trying to downgrade a file system mount status from
		     read-write to read-only.  Also forces the R/W mount of an
		     unclean file system (dangerous; use with caution).

	     fstab   When used with the -u flag, this is the same as specify-
		     ing all the options listed in the fstab(5) file for the
		     file system.

	     multilabel
		     Enable multi-label Mandatory Access Control, or MAC, on
		     the specified file system.  If the file system supports
		     multilabel operation, individual labels will be main-
		     tained for each object in the file system, rather than
		     using a single label for all objects.  An alternative to
		     the -l flag in tunefs(8).	See mac(4) for more informa-
		     tion, which cause the multilabel mount flag to be set
		     automatically at mount-time.

	     noasync
		     Metadata I/O should be done synchronously, while data I/O
		     should be done asynchronously.  This is the default.

	     noatime
		     Do not update the file access time when reading from a
		     file.  This option is useful on file systems where there
		     are large numbers of files and performance is more criti-
		     cal than updating the file access time (which is rarely
		     ever important).  This option is currently only supported
		     on local file systems.

	     noauto  This file system should be skipped when mount is run with
		     the -a flag.

	     noclusterr
		     Disable read clustering.

	     noclusterw
		     Disable write clustering.

	     noexec  Do not allow execution of any binaries on the mounted
		     file system.  This option is useful for a server that has
		     file systems containing binaries for architectures other
		     than its own.  Note: This option was not designed as a
		     security feature and no guarantee is made that it will
		     prevent malicious code execution; for example, it is
		     still possible to execute scripts which reside on a
		     noexec mounted partition.

	     nosuid  Do not allow set-user-identifier or set-group-identifier
		     bits to take effect.  Note: this option is worthless if a
		     public available suid or sgid wrapper like suidperl(1) is
		     installed on your system.	It is set automatically when
		     the user does not have super-user privileges.

	     nosymfollow
		     Do not follow symlinks on the mounted file system.

	     ro      The same as -r; mount the file system read-only (even the
		     super-user may not write it).

	     sync    All I/O to the file system should be done synchronously.

	     snapshot
		     This option allows a snapshot of the specified file sys-
		     tem to be taken.  The -u flag is required with this
		     option.  Note that snapshot files must be created in the
		     file system that is being snapshotted.  You may create up
		     to 20 snapshots per file system.  Active snapshots are
		     recorded in the superblock, so they persist across
		     unmount and remount operations and across system reboots.
		     When you are done with a snapshot, it can be removed with
		     the rm(1) command.  Snapshots may be removed in any
		     order, however you may not get back all the space con-
		     tained in the snapshot as another snapshot may claim some
		     of the blocks that it is releasing.  Note that the schg
		     flag is set on snapshots to ensure that not even the root
		     user can write to them.  The unlink command makes an
		     exception for snapshot files in that it allows them to be
		     removed even though they have the schg flag set, so it is
		     not necessary to clear the schg flag before removing a
		     snapshot file.

		     Once you have taken a snapshot, there are three interest-
		     ing things that you can do with it:

		     1.   Run fsck(8) on the snapshot file.  Assuming that the
			  file system was clean when it was mounted, you
			  should always get a clean (and unchanging) result
			  from running fsck on the snapshot.  This is essen-
			  tially what the background fsck process does.

		     2.   Run dump(8) on the snapshot.	You will get a dump
			  that is consistent with the file system as of the
			  timestamp of the snapshot.

		     3.   Mount the snapshot as a frozen image of the file
			  system.  To mount the snapshot /var/snapshot/snap1:

			  mdconfig -a -t vnode -f /var/snapshot/snap1 -u 4
			  mount -r /dev/md4 /mnt

			  You can now cruise around your frozen /var file sys-
			  tem at /mnt.	Everything will be in the same state
			  that it was at the time the snapshot was taken.  The
			  one exception is that any earlier snapshots will
			  appear as zero length files.	When you are done with
			  the mounted snapshot:

			  umount /mnt
			  mdconfig -d -u 4

			  Further details can be found in the file at
			  /usr/src/sys/ufs/ffs/README.snapshot.

	     suiddir
		     A directory on the mounted file system will respond to
		     the SUID bit being set, by setting the owner of any new
		     files to be the same as the owner of the directory.  New
		     directories will inherit the bit from their parents.
		     Execute bits are removed from the file, and it will not
		     be given to root.

		     This feature is designed for use on fileservers serving
		     PC users via ftp, SAMBA, or netatalk.  It provides secu-
		     rity holes for shell users and as such should not be used
		     on shell machines, especially on home directories.  This
		     option requires the SUIDDIR option in the kernel to work.
		     Only UFS file systems support this option.  See chmod(2)
		     for more information.

	     update  The same as -u; indicate that the status of an already
		     mounted file system should be changed.

	     union   Causes the namespace at the mount point to appear as the
		     union of the mounted file system root and the existing
		     directory.  Lookups will be done in the mounted file sys-
		     tem first.  If those operations fail due to a non-exis-
		     tent file the underlying directory is then accessed.  All
		     creates are done in the mounted file system.

	     Any additional options specific to a file system type that is not
	     one of the internally known types (see the -t option) may be
	     passed as a comma separated list; these options are distinguished
	     by a leading ``-'' (dash).  Options that take a value are speci-
	     fied using the syntax -option=value.  For example, the mount com-
	     mand:

		   mount -t unionfs -o -b /sys $HOME/sys

	     causes mount to execute the equivalent of:

		   /sbin/mount_unionfs -b /sys $HOME/sys

	     Additional options specific to file system types which are not
	     internally known (see the description of the -t option below) may
	     be described in the manual pages for the associated
	     /sbin/mount_XXX utilities.

     -p      Print mount information in fstab(5) format.  Implies also the -v
	     option.

     -r      The file system is to be mounted read-only.  Mount the file sys-
	     tem read-only (even the super-user may not write it).  The same
	     as the ro argument to the -o option.

     -t ufs | external_type
	     The argument following the -t is used to indicate the file system
	     type.  The type ufs is the default.  The -t option can be used to
	     indicate that the actions should only be taken on file systems of
	     the specified type.  More than one type may be specified in a
	     comma separated list.  The list of file system types can be pre-
	     fixed with ``no'' to specify the file system types for which
	     action should not be taken.  For example, the mount command:

		   mount -a -t nonfs,nullfs

	     mounts all file systems except those of type NFS and NULLFS.

	     If the type is not one of the internally known types, mount will
	     attempt to execute a program in /sbin/mount_XXX where XXX is
	     replaced by the type name.  For example, nfs file systems are
	     mounted by the program /sbin/mount_nfs.

	     Most file systems will be dynamically loaded by the kernel if not
	     already present, and if the kernel module is available.

     -u      The -u flag indicates that the status of an already mounted file
	     system should be changed.	Any of the options discussed above
	     (the -o option) may be changed; also a file system can be changed
	     from read-only to read-write or vice versa.  An attempt to change
	     from read-write to read-only will fail if any files on the file
	     system are currently open for writing unless the -f flag is also
	     specified.  The set of options is determined by applying the
	     options specified in the argument to -o and finally applying the
	     -r or -w option.

     -v      Verbose mode.

     -w      The file system object is to be read and write.

ENVIRONMENT
     PATH_FSTAB  If the environment variable PATH_FSTAB is set, all operations
		 are performed against the specified file.  PATH_FSTAB will
		 not be honored if the process environment or memory address
		 space is considered ``tainted''.  (See issetugid(2) for more
		 information.)

FILES
     /etc/fstab  file system table

DIAGNOSTICS
     Various, most of them are self-explanatory.

	   XXXXX file system is not available

     The kernel does not support the respective file system type.  Note that
     support for a particular file system might be provided either on a static
     (kernel compile-time), or dynamic basis (loaded as a kernel module by
     kldload(8)).

SEE ALSO
     getfacl(1), setfacl(1), mount(2), acl(3), mac(4), fstab(5), kldload(8),
     mount_cd9660(8), mount_devfs(8), mount_ext2fs(8), mount_fdescfs(8),
     mount_linprocfs(8), mount_msdosfs(8), mount_nfs(8), mount_ntfs(8),
     mount_nullfs(8), mount_nwfs(8), mount_portalfs(8), mount_procfs(8),
     mount_reiserfs(8), mount_smbfs(8), mount_std(8), mount_udf(8),
     mount_umapfs(8), mount_unionfs(8), umount(8)

CAVEATS
     After a successful mount, the permissions on the original mount point
     determine if .. is accessible from the mounted file system.  The minimum
     permissions for the mount point for traversal across the mount point in
     both directions to be possible for all users is 0111 (execute for all).

HISTORY
     A mount utility appeared in Version 1 AT&T UNIX.

BUGS
     It is possible for a corrupted file system to cause a crash.

FreeBSD 6.1		       November 26, 2004		   FreeBSD 6.1
=11789
+58
(3)