From: "Theo de Raadt" <deraadt@openbsd.org>
Subject: Re: Use dmesg(8) in fw_update(8) instead of dmesg.boot
To: Klemens Nanni <kn@openbsd.org>
Cc: Andrew Hewus Fresh <andrew@afresh1.com>, tech@openbsd.org
Date: Thu, 25 Dec 2025 12:55:11 -0700

Klemens Nanni <kn@openbsd.org> wrote:

> 25.12.2025 19:07, Theo de Raadt пишет:
> > Hmm.
> > 
> > I think we chose dmesg.boot for a reason before, but I'm not sure I
> > remember the reason.
> > 
> > Maybe we thought $(dmesg) could have rolled over with noisy debug messages,
> > and thus hidden names of devices we want to identify, and therefore
> > dmesg.boot was more reliable?
> > 
> > Here's a thought:  Should we look at both $(dmesg) and dmesg.boot ??
> 
> I certainly have machines where dmesg gets flooded with log spam,
> so any $(dmesg) with a few hours of uptime won't have a single device.
> 
> If fw_update stops looking at dmesg.boot, there won't be any chance
> for it to update existing firmware, right?

Look at my suggestion.