Bug#884374: systemd: dpkg fails for systemd package when upgrading from jessie to stretch

[Michael Biebl]

On Thu, 14 Dec 2017 19:42:31 +0100 Michael Biebl <biebl at debian.org> wrote:
> Am 14.12.2017 um 18:51 schrieb zythox:
> > hi, got this :
> > 
> > dpkg: systemd : problème de dépendance, mais suppression comme demandé :
> >  systemd-sysv dépend de systemd.
> >  libpam-systemd:amd64 dépend de systemd (= 215-17+deb8u7).
> > 
> > (Lecture de la base de données... 65%
> > (Lecture de la base de données... 206774 fichiers et répertoires déjà
> > installés.)
> > Suppression de systemd (215-17+deb8u7) ...
> > systemd is the active init system, please switch to another before
> > removing systemd.
> > dpkg: erreur de traitement du paquet systemd (--remove) :
> >  le sous-processus script pre-removal installé a retourné une erreur de
> > sortie d'état 1
> > Failed to stop lib-init-rw.mount: Unit lib-init-rw.mount not loaded.
> > addgroup: Le groupe « systemd-journal » existe déjà en tant que groupe
> > système. Fin de la procédure.
> > Des erreurs ont été rencontrées pendant l'exécution :
> >  systemd
> > Log ended: 2017-12-13  19:18:40
> Unfortunately I don't speak French and the log is very incomplete.
> Do you have a backup of the system so you could rerun the upgrade
> process with debugging enabled?
> Or do have at least a complete log of the upgrade process, to see which
> packages were involved?
> Otherwise there is unfortunately not a lot we can do.
> It's basically dpkg/apt that decides to remove systemd for some reason.
> And the systemd preinst script prevents that (as intended).
> Can you check, if you have packages installed, that conflict with systemd?

Do you have a backup of the system from before the update (basically a
copy of /var/lib/dpkg/status)? If not, there is probably zero chance to
find out why apt decided to remove systemd.

-- 
Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?

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