Differential D30768 Diff 91406 sbin/mount_nfs/mount_nfs.8

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sbin/mount_nfs/mount_nfs.8

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	.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT			.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY			.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF			.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	.\" SUCH DAMAGE.			.\" SUCH DAMAGE.
	.\"			.\"
	.\" @(#)mount_nfs.8 8.3 (Berkeley) 3/29/95			.\" @(#)mount_nfs.8 8.3 (Berkeley) 3/29/95
	.\" $FreeBSD$			.\" $FreeBSD$
	.\"			.\"
	.Dd January 17, 2021			.Dd June 26, 2021
	.Dt MOUNT_NFS 8			.Dt MOUNT_NFS 8
	.Os			.Os
	.Sh NAME			.Sh NAME
	.Nm mount_nfs			.Nm mount_nfs
	.Nd mount NFS file systems			.Nd mount NFS file systems
	.Sh SYNOPSIS			.Sh SYNOPSIS
	.Nm			.Nm
	.Op Fl 23bcdiLlNPsTU			.Op Fl 23bcdiLlNPsTU
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	then version 2).			then version 2).
	Note that NFS version 2 has a file size limit of 2 gigabytes.			Note that NFS version 2 has a file size limit of 2 gigabytes.
	.It Cm nfsv3			.It Cm nfsv3
	Use the NFS Version 3 protocol.			Use the NFS Version 3 protocol.
	.It Cm nfsv4			.It Cm nfsv4
	Use the NFS Version 4 protocol.			Use the NFS Version 4 protocol.
	This option will force the mount to use			This option will force the mount to use
	TCP transport.			TCP transport.
				By default, the highest minor version of NFS Version 4 that is
				supported by the NFS Version 4 server will be used.
				See the
				.Cm minorversion
				option.
	.It Cm minorversion Ns = Ns Aq Ar value			.It Cm minorversion Ns = Ns Aq Ar value
	Override the default of 0 for the minor version of the NFS Version 4 protocol.			Use the specified minor version for a NFS Version 4 mount,
	The minor versions other than 0 currently supported are 1 and 2.			overriding the default.
				The minor versions supported are 0, 1, and 2.
	This option is only meaningful when used with the			This option is only meaningful when used with the
	.Cm nfsv4			.Cm nfsv4
	option.			option.
	.It Cm oneopenown			.It Cm oneopenown
	Make a minor version 1 or 2 of the NFS Version 4 protocol mount use a single			Make a minor version 1 or 2 of the NFS Version 4 protocol mount use a single
	OpenOwner for all Opens.			OpenOwner for all Opens.
	This may be useful for a server with a very low limit on OpenOwners, such as			This may be useful for a server with a very low limit on OpenOwners, such as
	AmazonEFS.			AmazonEFS.
	It may be required when an accumulation of NFS version 4 Opens occurs,			It may be required when an accumulation of NFS version 4 Opens occurs,
	as indicated by the			as indicated by the
	.Dq Opens			.Dq Opens
	count displayed by			count displayed by
	.Xr nfsstat 8			.Xr nfsstat 1
				otisUnsubmitted Done Inline Actions `nfsstat` is `(1)`, not `(8)`. otis: `nfsstat` is `(1)`, not `(8)`.
				rmacklemAuthorUnsubmitted Done Inline Actions Good catch. Not a part of this change, but might as well fi it now. rmacklem: Good catch. Not a part of this change, but might as well fi it now.
	with the			with the
	.Fl c			.Fl c
	and			and
	.Fl E			.Fl E
	command-line options.			command-line options.
	A common case for an accumulation of Opens is a shared library within			A common case for an accumulation of Opens is a shared library within
	the NFS mount that is used by several			the NFS mount that is used by several
	processes, where at least one of these processes is always running.			processes, where at least one of these processes is always running.
	This option cannot be used for an NFS Version 4, minor version 0 mount.			This option cannot be used for an NFS Version 4, minor version 0 mount.
	As such, this option requires the
	.Cm minorversion
	option be specified with a value of 1 for AmazonEFS, because AmazonEFS does
	not support minor version 2 at this time.
	It may not work correctly when Delegations are being issued by a server,			It may not work correctly when Delegations are being issued by a server,
	but note that the AmazonEFS server does not issued delegations at this time.			but note that the AmazonEFS server does not issued delegations at this time.
	This option is only meaningful when used with the			This option is only meaningful when used with the
	.Cm nfsv4			.Cm nfsv4
	and			option.
	.Cm minorversion
	options.
	.It Cm pnfs			.It Cm pnfs
	Enable support for parallel NFS (pNFS) for minor version 1 or 2 of the			Enable support for parallel NFS (pNFS) for minor version 1 or 2 of the
	NFS Version 4 protocol.			NFS Version 4 protocol.
	This option is only meaningful when used with the			This option is only meaningful when used with the
	.Cm minorversion			.Cm nfsv4
	option.			option.
	.It Cm noac			.It Cm noac
	Disable attribute caching.			Disable attribute caching.
	.It Cm noconn			.It Cm noconn
	For UDP mount points, do not do a			For UDP mount points, do not do a
	.Xr connect 2 .			.Xr connect 2 .
	This must be used if the server does not reply to requests from the standard			This must be used if the server does not reply to requests from the standard
	NFS port number 2049 or replies to requests using a different IP address			NFS port number 2049 or replies to requests using a different IP address
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