From: Stuart Henderson <stu@spacehopper.org>
Subject: Re: /usr size needed for upgrade
To: Adriano Barbosa <barbosa.aob@gmail.com>, tech@openbsd.org
Date: Mon, 10 Nov 2025 13:56:54 +0000

On 2025/11/09 23:39, Matthias Kilian wrote:
> On Fri, Nov 07, 2025 at 03:57:53PM +0100, Marc Espie wrote:
> > > The situation is unfortunate, but there is no magic answer to it.
> > 
> > There's a non-magic answer in ports, it's called sysclean
> > and kuddoes to semarie@ for writing it.
> 
> And it may badly break other users tools outside of common PATHs
> if you blindly delete what it reports.
> 
> No magic. You have to ask all users on a machine to rebuild their
> programs before you can wipe shared libs.

On a system which uses those, yes, though many people aren't
self-building anything and just use packages, in which case sysclean
does a pretty good job (especially if restricted to ^/usr/).

And when people are building things themselves, they often break
across OS version updates anyway. Not all the time, but around every
2-3 releases is not unusual.