From: "Theo de Raadt" <deraadt@openbsd.org>
Subject: Re: /usr size needed for upgrade
To: Adriano Barbosa <barbosa.aob@gmail.com>
Cc: tech@openbsd.org
Date: Fri, 24 Oct 2025 09:13:23 -0600

Adriano Barbosa <barbosa.aob@gmail.com> wrote:

> Hi,
> 
> The upgrade instructions say "Verify that the /usr partition has a
> size of at least 1.1G". My upgrade 7.8 failed because there wasn't
> enough space in /usr, but my partition size is 2.0G.
> /dev/sd1e      2.0G    1.7G    205M    90%    /usr

A lot of detritus collects in systems which have been upgraded through
many releases, in particular lib*.so libraries

The situation is unfortunate, but there is no magic answer to it.