Re: Postgresql 18 Linux (all flavors) - with installation, create new instance/main database

From: Isaac Morland <isaac(dot)morland(at)gmail(dot)com>
To: "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com>
Cc: Dutch Glory <dutch(dot)glory(at)yahoo(dot)com>, "pgsql-hackers(at)lists(dot)postgresql(dot)org" <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: Postgresql 18 Linux (all flavors) - with installation, create new instance/main database
Date: 2026-05-07 12:44:12
Message-ID: CAMsGm5fs_Ws7EY+YO0nUoKKY-RMPk7O3aj2QTRy8LobnURtL1g@mail.gmail.com
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On Thu, 7 May 2026 at 08:40, David G. Johnston <david(dot)g(dot)johnston(at)gmail(dot)com>
wrote:

> On Thursday, May 7, 2026, Dutch Glory <dutch(dot)glory(at)yahoo(dot)com> wrote:
>
>>
>> proposal:
>> Postgresql 18 Linux (all flavors) - with installation, create new
>> instance/main database:
>> sudo -u postgres /usr/pgsql-18/bin/pg_ctl -D /var/lib/pgsql/18/data/
>> initdb
>>
>>
> No, make/ninja install should not create a database. That is outside its
> appropriate responsibilities. Installing from source stops once the
> binaries are installed. Using the installed product is up to the user.
>

Also there are lots of reasons to install Postgres without creating an
instance. This is actually one of the things I don't like about the Ubuntu
installer, which defaults to creating an instance (although this behaviour
can be suppressed by creating a config file with an appropriate directive
first).

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