.Dd February 2, 2015
.Dt MOUNT 8
.Os ubase
.Sh NAME
.Nm mount
.Nd mount a filesystem
.Sh SYNOPSIS
.Nm
.Op Fl BMRan
.Op Fl o Ar options
.Op Fl t Ar fstype
.Op Ar source
.Op Ar target
.Sh DESCRIPTION
.Nm
attaches the filesystem specified to the filesystem hierarchy. The
.Xr umount 8
command will detach it again.
.Sh OPTIONS
.Bl -tag -width Ds
.It Fl B
Remount a subtree somewhere else (so that its contents are visible in both
places).
.It Fl M
Move a subtree to some other place.
.It Fl R
Remount a subtree and all possible submounts somewhere else (so that its
contents are available in both places).
.It Fl a
Mount all filesystems mentioned in
.Pa /etc/fstab .
.It Fl n
Mount without writing in
.Pa /etc/mtab .
This is the default action.
.It Fl o Ar options
Specify a comma separated string of filesystem specific options.
.It Fl t Ar fstype
Set the filesystem type. 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 for which action should not be taken. For
example, the
.Nm
command:
.Bd -literal
# mount -a -t nonfs,ext4

.Ed
mounts all file systems except those of type NFS and EXT4.
.Nm
will attempt to execute a program in your
.Ev PATH
mount.XXX where XXX is replaced by the type name. For example, NFS file
systems are mounted by the program
.Pa mount.nfs .
.El
.Sh SEE ALSO
.Xr mount 2 ,
.Xr umount 2 ,
.Xr swapon 8 ,
.Xr umount 8