Sorry, I'd mis-interpreted this bug! I'd gone digging through the
history of debconf and couldn't understand how dpkg-reconfigure was only
restarting things just *now*, but hadn't correctly understood that your
bug was complaining the service was stopped, but *not started* again.
So, my apologies: must read more carefully!
Anyway, to the problem as described: checking d/rules in postgresql-
common we find:
# do not (re)start postgresql.service on postgresql-common install/upgrades
override_dh_installinit:
dh_installinit -ppostgresql-common --name=postgresql -u'defaults 19 21'
--no-start
override_dh_installsystemd:
dh_installsystemd --no-start
This strongly suggests you *do* want to add --no-stop-on-upgrade because
the comment indicates a mis-understanding of --no-start. The --no-start
option tells dh_install{init,systemd} that you don't want the service
automatically started upon installation but in the absence of --no-stop-
on-upgrade it *will* still attempt to restart it on upgrades (this isn't
terribly well documented in the dh_installsystemd manpage -- I should
correct that).
There is one other way you could go about solving this, but it's
horribly subtle. The reason preinst is stopping postgres is that --no-
start implies --no-restart-after-upgrade, the (terribly named) option
that specifies a service *should* be restarted but by stopping it before
and upgrade and starting it again afterward (as opposed to --restart-
after-upgrade, the usual default which simply runs a restart after an
upgrade). Quite *why* --no-start implies --no-restart-after-upgrade I've
no idea; I did note it at the time I was hacking on debhelper and it's
one of those things that, given free reign, I'd excise. However, as
mentioned before I tried to be extremely conservative with my changes to
debhelper (and dpkg-reconfigure).
Anyway, the other way you could solve this would be by specifying --no-
start and --restart-after-upgrade. This would mean preinst doesn't try
to stop the service, but postinst will "try-restart" the service (which
means restart if it's already running, but don't start it if it isn't).
However, that would run contrary to the comment in d/rules so I suspect
it's not what you want to do.
Hope that's not too confusing! Do let me know if there's anything that
needs clarification above.
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https://bugs.launchpad.net/bugs/1973382
Title:
autopkgtests failures due to debhelper 13.6 changes
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