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Date:      Mon, 25 Jun 2018 18:47:40 +0300
From:      Konstantin Belousov <kostikbel@gmail.com>
To:        Warner Losh <imp@bsdimp.com>
Cc:        Poul-Henning Kamp <phk@phk.freebsd.dk>, "freebsd-arch@freebsd.org" <arch@freebsd.org>
Subject:   Re: UEFI Plans / Shifts -- RFC
Message-ID:  <20180625154740.GF2430@kib.kiev.ua>
In-Reply-To: <CANCZdfoSGa%2BuO0Q6z2FOt_0=vSn2F9N%2BdCdysWHLrtpYFV22Tw@mail.gmail.com>
References:  <CANCZdfoMZXJu2nRbAtLTPc1B4YWWbxsHQjX31zOo%2B8mDwMAQuA@mail.gmail.com> <19341.1529917294@critter.freebsd.dk> <20180625091844.GC2430@kib.kiev.ua> <CANCZdfoSGa%2BuO0Q6z2FOt_0=vSn2F9N%2BdCdysWHLrtpYFV22Tw@mail.gmail.com>

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On Mon, Jun 25, 2018 at 07:37:19AM -0600, Warner Losh wrote:
> On Mon, Jun 25, 2018 at 3:18 AM, Konstantin Belousov <kostikbel@gmail.com>
> wrote:
> 
> > On Mon, Jun 25, 2018 at 09:01:34AM +0000, Poul-Henning Kamp wrote:
> > > --------
> > > In message <CANCZdfoMZXJu2nRbAtLTPc1B4YWWbxsHQjX31zOo+8mDwMAQuA@mail.
> > gmail.com>
> > > , Warner Losh writes:
> > >
> > > >So here's my open questions:
> > > >(1) Do I need to parse boot.conf?
> > >
> > > I can't see how it would add any value on top of UEFI and reading it
> > > will just keeping old workarounds alive another decade for no good
> > reason.
> >
> > An obvious values is to have serial console earlier than loader.conf is
> > parsed.  At least on typical desktop motherboards which do not have
> > serial bios redirection, this is important.
> >
> 
> This won't work until AFTER we add ACPI to the boot loader.

Why ?



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