From: "Theo de Raadt" <deraadt@openbsd.org>
Subject: Re: sysupgrade/ftp: use a 'needle' to poke through caching layers
To: Job Snijders <job@openbsd.org>, tech@openbsd.org
Date: Fri, 03 May 2024 07:10:54 -0600

Theo de Raadt <deraadt@openbsd.org> wrote:

> Kirill A. Korinsky <kirill@korins.ky> wrote:
> 
> > On Fri, 03 May 2024 12:17:23 +0200,
> > "Theo de Raadt" <deraadt@openbsd.org> wrote:
> > >
> > > Regardless you can *still lose*, unless we put all of OpenBSD into 1 file.
> > >
> > 
> > Here another solution: change layout to /pub/OpenBSD/snapshots/VERSION/amd64
> > where VERSIONS is timestamp or date.
> > 
> > And a text file /pub/OpenBSD/snapshots/latest with the lastest VERSION.
> 
> You don't understand the problem.  There is no way to gaurantee atomicity
> of multiple files.  It has *nothing* to do with timestamps or dates.

Oh I see the brilliance of your solution:

Nearly infinite disk space requirements for all mirrors.