vnconfig.8: fix grammar in a sentence

branches: 1.50.2;
vnconfig.8: Don't mention ciphertext

After all, this is not cgd(4).

vnconfig: Improve recent caching edit to man page

Explain that typical usage patterns don't run into consistency issues.
Xref the -i flag.

Leave ambiguous the nature of cache inconsistency, because I don't
undersstand it and it's best not to make it a defined interface
anyway. I am unclear on whether a buffer cache read before a vnd
session might persist after a vnd is configured/used/unconfigured, and
whether a buffer cache write might be delayed until after a vnd
configure/write.

New sentence, new line. Bump date for previous.

vnconfig: Add caution to man page about cache bypassing behavior

Add magic incantation to configure an image for mount_udf(8).

Sort options.

Add flag to enforce file I/O even when bmap/strategy would be possible.
This makes it easier to compare both modes, it also allows coherent
operation between vnd device and image file.

branches: 1.43.2;
Fix missed s/vnconfig/vndconfig/ in an example.

branches: 1.42.14;
Sort sections. Use more markup.

Cosmetic tweaks to vncfonfig -l output, from Robert Elz (with minor tweaks
[and all bugs] by me). This should restore compatibility for old scripts
trying to find free vnodes in the new cloning world order.

Update to keep up with reality. In NetBSD 7, the vnconfig command was
renamed. So add this fact to the HISTORY section and remove BUGS.

XXX Pull-up to NetBSD-7 !

branches: 1.39.6; 1.39.8;
bump date.

Alias this to vndconfig for symmetry.

branches: 1.37.2;
From Bug Hunting: Add vndcompress(1) to SEE ALSO, bump date.

While here:
New sentence, new line.

branches: 1.36.4;
Restore historic SCCS IDs in the comments (were removed in previous commit).
Noted by wiz@.

Remove clause 3 (UCB advertising clause) from the University of Utah
copyright. Confirmed by Mike Hibler, mike at cs.utah.edu - thanks!
Also, merge UCB and Utah copyright texts back into one, as they
originally were.

Extra verification by snj@.

branches: 1.34.18;
Move TNF licenses to 2 clause form

branches: 1.33.18;
Argument is regular_file, not "regular file". From YOMURA Masanori in private mail.

Grammar fixes.

Drop trailing whitespace.

Add support for reading cloop2 compressed filesystem image,
enable by putting VND_COMPRESSION into kernel config file.
Written by Cliff Wright, polished up slightly by me.

branches: 1.29.6;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22366, verified by myself.

Sort options in SYNOPSIS and description.

Add an interface to the "force" option, and fix a bug where the
"readonly" flag cleared "hasgeom".

bump date.

add a new option, -r; read-only configuration.

.Nm does not need a dummy argument ("") before punctuation or
for correct formatting of the SYNOPSIS any longer.

Provide a means for vnconfig to indicate which devices are in use, and
by which files (hmm...why can't I unmount that file system over
there). Currently this is just the device and inode number of the
file backing the vnd, but hopefully consing up full pathnames can be
done at some point.

Drop duplicate .Pp.

Sort sections, sort SEE ALSO, drop a .Pp.

Add optional "-f disktab" argument, that will look up a disk
typename in the given disktab(5) file, instead of in /etc/disktab.

Now that vnconfig uses opendisk(3) update it's usage encouraging use
of "vnd0" instead of "/dev/rvnd0{c,d}". Noted by tron.

Put sections in the canonical order (from mdoc.samples(7)).
Add a "HISTORY" section.

Replace "foo is mutually exclusive of bar" with "foo and bar are mutually
exclusive".

Formatting cleanups around the description of geomspec.

Fix typo.

branches: 1.14.10;
More and more .Os cleanups. .Os is defined in the tmac.doc-common file,
so we shouldn't override it with versions in the manpages. Many more to
come.

sort entries and delete extra periods in SEE also section.

WARNSify

- Xref opendisk(3).
- Refer vnode disk as vnd0 instaed of vnd0c.
- Rename argument to specify vnode disk from special_file to vnode_disk.
- Explain that vnode_disk is a special file or name like vnd0.
- Add one example which uses vnd0 instead of /dev/vnd0c.

Fix files using old TNF copyright notice

Fix typo; from SAITOH Masanobu <msaitoh@spa.is.uec.ac.jp> in PR misc/3796.

Update for changes to the vnd driver:
- Add optional "geomspec" argument as third argument when configuring
a vnode disk. Format is: secsize/secpertrack/trackpercyl/ncylinders,
e.g. 512/18/2/80.
- Add optional "-t typename" argument, mutually exclusive with "geomspec",
that will look up "typename" in /etc/disktab and use the geometry
specified in the entry.
- Update verbose output accordingly.

Add RCS ids.

Add a vnd(4) manual page and make vnconfig(8) reference it. Fixes
PR #445.

vn -> vnd renaming; consistency.

Clean up parsing a bit. Get rid of bogus extra arg to `-u'. Update the
usage string and man page to reality.

vnconfig.c: removed all the silly mount/swapon functionality that never
belonged there. much of it didn't work anyway.
vnconfig.8: update man page. still needs work.

Change /dev/vn0c to /dev/vnd0c (from jimj@miller.cs.uwm.edu)

Add vnconfig command.