Date: Tue, 13 Aug 2024 11:31:30 -0700 From: Cy Schubert <Cy.Schubert@cschubert.com> To: Warner Losh <imp@bsdimp.com> Cc: Tomek CEDRO <tomek@cedro.info>, Daniel Braniss <danny@cs.huji.ac.il>, freebsd-hackers <hackers@freebsd.org> Subject: Re: FreeBSD 14.1 and UEFI boot ignores bootme flag Message-ID: <20240813183130.5FC04A3@slippy.cwsent.com> In-Reply-To: <CANCZdfp56NwHwiOkjxWEnfACyge%2BnHL0CiSnf_NL5MNswpdHTw@mail.gmail.com> References: <0C0CF611-4C88-4EF1-9F9A-3A35D5236854@cs.huji.ac.il> <CANCZdfoqJkcgvG_oS_nQfQABvq8E5sQO7piggj_42Qf=6iA3PA@mail.gmail.com> <DC5F602B-894C-482F-9519-BB057B6DBB10@cs.huji.ac.il> <CAFYkXjk=W6Lsc9LXsFSuRmffGXwAn0nuiXf5kiu7yDXCumGg5g@mail.gmail.com> <CANCZdfp56NwHwiOkjxWEnfACyge%2BnHL0CiSnf_NL5MNswpdHTw@mail.gmail.com>
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In message <CANCZdfp56NwHwiOkjxWEnfACyge+nHL0CiSnf_NL5MNswpdHTw@mail.gmail.c
om>
, Warner Losh writes:
> --000000000000945ac2061f940ddc
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> On Tue, Aug 13, 2024 at 11:24=E2=80=AFAM Tomek CEDRO <tomek@cedro.info> wro=
> te:
>
> > On Tue, Aug 13, 2024 at 3:30=E2=80=AFPM Daniel Braniss <danny@cs.huji.ac.=
> il>
> > wrote:
> > > (..)
> > > At some point I succeeded in deleting the dvd, but now I see its back.
> >
> > This may be added by BIOS / Setup :-)
> >
> > > So how do I add a second boot partition?
> >
> > Use efibootmgr as imp suggested and add another entry with desired
> > boot information, you may then select this new entry as the default.
> > It will show up in BIOS / Setup menu and you can change order over
> > there.. but the entry needs to be added with efibootmgr :-)
> >
>
> yea, efibootmgr -k is what's needed. You'll need to specify the partition
> to boot off of. That's the ideal solution.
>
>
> > No worries I had the same problem too some time ago, also found
> > reference to bootme flag which did not work (should be removed from
> > man pages?). Now I sometimes use F8 at boot to select different system
> > to boot.. but there are good looking menu like bootloaders for UEFI
> > like reEFInd [1], Clover [2], LibreBoot [3]. Maybe we need some more
> > documentation on this? :-)
> >
>
> These might work. bootme is only documented in the BIOS loader man
> page...
>
> There's also an unsupported, may go away in the future gptboot.efi
> that you can use if you really must use this setup.. We use it for bootable
> USB drives at work, but if it doesn't work for you, I'm not sure I'd fix
> bugs
> in it.
>
> However, we're moving to ZFS only, and we've found ZFS BEs to be way
> more flexible and will be the way of the future. As such, I've stopped
> maintaining gptboot.efi and will likely remove it in the future.
loader.efi also works with UFS.
My rescue disk contains:
slippy# gpart show da4
=> 40 1953525088 da4 GPT (932G) <-- /boot/pmbr
40 472 1 freebsd-boot (236K) <-- /boot/gptboot
512 532480 2 efi (260M) <-- /boot/loader.efi
532992 4194304 3 freebsd-ufs [bootme] (2.0G)
4727296 12582912 4 freebsd-swap (6.0G)
17310208 4194304 5 freebsd-ufs (2.0G)
21504512 4194304 6 freebsd-ufs (2.0G)
25698816 41943040 7 freebsd-ufs (20G)
67641856 1885883272 8 freebsd-zfs (899G)
slippy#
This rescue disk (USB) boots on UEFI and legacy systems. (It contains
enough tools and backups to restore an unbootable system to a bootable
state.)
--
Cheers,
Cy Schubert <Cy.Schubert@cschubert.com>
FreeBSD UNIX: <cy@FreeBSD.org> Web: https://FreeBSD.org
NTP: <cy@nwtime.org> Web: https://nwtime.org
e^(i*pi)+1=0
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