Date: Thu, 17 Dec 2020 12:02:12 -0700 From: Warner Losh <imp@bsdimp.com> To: Poul-Henning Kamp <phk@phk.freebsd.dk> Cc: Lev Serebryakov <lev@freebsd.org>, "freebsd-hackers@freebsd.org" <hackers@freebsd.org> Subject: Re: Should/does loader.efi respect the "bootme" GPT attribute ? Message-ID: <CANCZdfqpRMy7umqtPL1vNPbv3erYWb7yL-WidL5hJQkY_YxSxQ@mail.gmail.com> In-Reply-To: <62922.1608231126@critter.freebsd.dk> References: <25469.1608040822@critter.freebsd.dk> <CANCZdfpcrXcgnh1O74A-MhSO2NFqTtq0rJrBDpEfwgxbVDPN8A@mail.gmail.com> <26111.1608051101@critter.freebsd.dk> <CANCZdfqhi742n9V%2BwCzhniB3QU5Equo%2BsnEOz0xQ2GmPKo27PQ@mail.gmail.com> <63257157-9cdd-0da4-f061-4005319514c2@FreeBSD.org> <CANCZdfpHzPt8Nr0BS9u=J7dCWP9SjpRWfurwEfTUiCO%2B7XK6rA@mail.gmail.com> <62922.1608231126@critter.freebsd.dk>
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On Thu, Dec 17, 2020 at 11:52 AM Poul-Henning Kamp <phk@phk.freebsd.dk> wrote: > -------- > Warner Losh writes: > > > > > UEFI has its own bootnext protocol, that works in conjunction with > the EFI > > > > environment variables to have a more robust, less 'guess what I > mean' > > > > approach. So all in all, it's hard, non-standard and doesn't play > well with > > > > UEFI." > > > > > > Could it be used here? > > > > > > > Yes. It can. > > Do you know of any good sources of documentation ? > Chapter 3 of the UEFI spec has the canonical reference for the Boot Manager specification. If your mobo understands setting persistent UEFI variables, that's the most robust way to do things. There's not a FreeBSD document, though efibootmgr comes closest and would be what you'd use to manage... Warner
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