mount.8: Add a single example for single user mode

The zfs command to do this is a bit longer and harder to remember. In
the last few releases mount(8) learned how to do this, so lets show it
in the manual.

MFC after:		3 days
Reported by:		Jan Bramkamp <crest+freebsd@rlwinm.de>
Discussed with:		cperciva, emaste
Reviewed by:		mhorne
Approved by:		mhorne (mentor)
Differential Revision:	https://reviews.freebsd.org/D49988

(cherry picked from commit c3e06b23b4174c726d7d0ba131869e4aeee8067d)
This commit is contained in:
Alexander Ziaee 2025-04-24 18:04:14 -04:00
parent 1d111b39e5
commit b90ff46567
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@ -547,6 +547,10 @@ for more information.)
.It Pa /etc/fstab
file system table
.El
.Sh EXAMPLES
Remount the root filesystem with read-write permissions:
.Pp
.Dl mount -uw /
.Sh DIAGNOSTICS
Various, most of them are self-explanatory.
.Pp