Date: Sun, 14 Dec 2025 19:55:43 +0100
From: Christoph Berg <myon@debian.org>
To: Simon =?iso-8859-1?Q?H=F6nscheid?= <simon.hoenscheid@xyntion.consulting>
Cc: pgsql-pkg-debian@postgresql.org
Subject: Re: Installing multiple Postgresql Versions in parallel, does not
 seem to work anymore
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Re: Simon Hönscheid
> The Server is Running Debian 12 and the postgresql.org apt repository. Until
> today the Server was running Postgresql 14 and an upgrade to postgresql 17
> was planned. In the past I used to install the new version in parallel and
> migrated the data. Today I noticecd the post install steps did not run. No
> cluster was bootstrapped, no config directory created, no systemd unit
> created. There was also an upgrade planned to Debian 13, so I did this
> first, and tried again. Same result.

The packages are co-installable. What changed is that no new cluster
is created by default. If you want that, run `pg_createcluster 17 main`.

But the packaging is built about pg_upgradecluster, so you might just
run `pg_upgradecluster 14 main -v 17` instead.

Christoph