This is now needed to generate the PS and PDF output.

this should presumably be customized by a real policy editor

.txt still needs work

There are other things in section 9 that remain to be updated.

Suggested by Holger Levsen.

Andreas Henriksson authored Dec 17, 2016 and Sean Whitton committed Aug 03, 2017

The entire section is specific to sysvinit and already solved
by LSB in that case. There's no point in reinventing LSB.
Also other init systems handles this in ways that's not at all
described here. Just drop the entire section as it gives no
practical useful information.

Andreas Henriksson authored Dec 17, 2016 and Sean Whitton committed Aug 03, 2017

In addition to the sysvinit skeleton file also point out
where to find systemd integration examples.

Andreas Henriksson authored Dec 17, 2016 and Sean Whitton committed Aug 03, 2017

No idea how long ago this paragraph had any relevance....

Andreas Henriksson authored Dec 17, 2016 and Sean Whitton committed Aug 03, 2017

Slightly reword the paragraph to not sound like anything should be
converted (which isn't the normal case these days), rather than just
use invoke-rc.d.

Andreas Henriksson authored Dec 17, 2016 and Sean Whitton committed Aug 03, 2017

The intention is to also make sure that eg. it's equally not
allowed to directly call 'systemctl <action> <unit>' but maybe
the wording can be improved further to more clearly express this.
In other words the language is still a bit outdated in this paragraph.

Andreas Henriksson authored Dec 17, 2016 and Sean Whitton committed Aug 03, 2017

Todays init systems calculates a dependency graph (eg. from the
dependencies specified in LSB headers) and doesn't go by sequence
numbers. See eg. insserv.

Andreas Henriksson authored Dec 17, 2016 and Sean Whitton committed Aug 03, 2017

These days the information in the LSB header is used.

Manually specifying/overriding runlevels as a parameter to
update-rc.d on command line is even deprecated and a noop stub
these days.

Andreas Henriksson authored Dec 17, 2016 and Sean Whitton committed Aug 03, 2017

Get rid of "script" as that doesn't properly describe the equivalent for
systems using declarative replacements.

Also drop "the" as via update-rc.d you're potentially/likely interfacing
with multiple ones at a time. Possibly the word system should be
replaced with systems or system(s)?