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From: Adrian Klaver <[email protected]>
To: Peter J. Holzer <[email protected]>
To: [email protected]
Subject: Re: Upgrade Ubuntu 22 -> 24 may break PostgreSQL
Date: Sat, 31 Aug 2024 10:35:01 -0700
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>

On 8/31/24 09:54, Peter J. Holzer wrote:
> 'Tis the season again.
> 
> Ubuntu 24.04.1 has just been released, so many Ubuntu LTS users will now
> be prompted to upgrade from 22.04 to 24.04.

Which I ignore.

> 
> A word of warning to those who use Postgresql from the Ubuntu repo (not
> PGDG):

Why I do use the PGDG repo's.

> 
> As usual, a newer Ubuntu version comes with a newer Postgres version (16
> instead of 14). Also as usual, I got a message during the upgrade that
> Postgres 14 is obsolete,. but the binaries have been left installed and
> I should upgrade to Postgres 16 manually ASAP.
> 
> But after the reboot, PostgreSQL failed to start because it needed a
> shared library (libldap) which was no longer there. So a normal
> pg_upgradecluster wouldn't work.

sudo apt install libldap-X.x did not work?

> 
> In my case the quickest way to recover was to install postgresql-14 on a
> VM, copy the data direcory into that instance and make a fresh dump,
> then install postgresql-16 on my laptop and restore the dump. Annoying,
> but no big deal for the small test database I keep on my laptop. If you
> have multi-terabyte databases, your situation may be different.
> 
> I'm not exactly sure what went wrong (I got some conflicts during the
> upgrade and maybe I shouldn't have invoked apt autoremove?), and you may
> not have this problem, but make sure you have a backup before the
> upgrade.
> 
>          hp
> 
> 

-- 
Adrian Klaver
[email protected]

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