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From: Ed Maste <emaste@freebsd.org>
Date: Thu, 18 Sep 2014 10:47:43 -0400
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Subject: Re: svn commit: r271762 - in head/sys/boot: amd64/boot1.efi
 efi/include efi/libefi
To: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>
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On 18 September 2014 10:20, Bjoern A. Zeeb
<bzeeb-lists@lists.zabbadoz.net> wrote:
>
> Thanks a lot;  that massively helps debugging (as you can at least see wh=
at=E2=80=99s going on).   Eventually we might want to make that dependent o=
n environment variables maybe?
>
> For example on the Mac I have been using this for a while to see kernel b=
oot messages:
>
> % sudo nvram boot-args
> boot-args       -v
>
> But I am not entirely confident with variable naming or sharing on dual-b=
oot machines yet.  It seems the new world order has quite a bit to discover=
 (research) still ;-)

Yes, once we add nvram environment variable support we will want to
provide a choice of switching to text mode in the loader or remaining
in graphics mode and hiding the boot process.

You are correct that there's a lot to sort out for dual-boot cases.