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-rw-r--r--usr.sbin/mountd/exports.515
1 files changed, 14 insertions, 1 deletions
diff --git a/usr.sbin/mountd/exports.5 b/usr.sbin/mountd/exports.5
index a90d81c4db99..786411fbf6d8 100644
--- a/usr.sbin/mountd/exports.5
+++ b/usr.sbin/mountd/exports.5
@@ -25,7 +25,7 @@
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
-.Dd December 16, 2024
+.Dd August 24, 2025
.Dt EXPORTS 5
.Os
.Sh NAME
@@ -148,6 +148,19 @@ characters.
Mount points for a file system may appear on multiple lines each with
different sets of hosts and export options.
.Pp
+Note that, for NFSv4 exporting, there must be both one or more ``V4:'' line(s)
+and one or more line(s) exporting the file systems that are to be
+exported to NFSv4 clients.
+If there are multiple ``V4:'' lines, these lines must all specify the
+same root directory path, but with different options for different
+clients.
+These line(s) do not export any file system, but simply define the
+location of the ``root'' of the NFSv4 export subtree.
+The line(s) exporting the file systems should always
+specify the pathname of the root of a server file system
+and must include at least one line exporting the file system
+which is specified as the ``root'' by the ``V4:'' line(s).
+.Pp
The second component of a line specifies how the file system is to be
exported to the host set.
The option flags specify whether the file system