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Re: Migrate Stretch to New UEFI Build?

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On Fri, Jan 11, 2019 at 8:12 PM Michael Stone <mstone@debian.org> wrote:
> Putting grub in a directory other than "EFI/debian" does allow for
> multiple OSs to have their own boot loaders which can be started from
> the UEFI boot menu. (E.g., you could have EFI/stretch, EFI/centos7,
> EFI/sid, etc.) In this case I would still keep the efi partition mounted
> on /boot/efi to reduce long-term confusion. I'd also add new directories
> instead of trying to keep multiple versions of debian from overwriting
> the debian directory.

Do you know how to do this? I've had quite a bit of difficulty just adding
new boot entries to EFI, including bizarre results like my newly-added boot
entry not appearing after reboot but both PXE entries (IPV4/6) being
duplicated. I've been using efibootmgr from within Linux as well as bcfg
from the EFI shell.

I've been trying in a VM with both stretch and buster installed (both use
the vendor directory "\EFI\debian)" as well as on my new laptop with Ubuntu
and Ubuntu Studio installed (both use the vendor directory "\EFI\ubuntu").
I was able to install GRUB to a new EFI directory (e.g. "ubustu" for Ubuntu
Studio), but I was left with the impression that there was something
hard-coded that was overriding the specification of vendor directory
(--bootloader-id in grub-install) when creating the EFI boot entry (e.g.
the "ubustu" entry booted Ubuntu, not Ubuntu Studio).

In practice, I suppose it doesn't matter because the most recently
installed GRUB will contain menu items to boot both operating systems, but
I am relatively new to EFI and want to learn it thoroughly.

--
Glenn Holmer (Linux registered user #16682)
"After the vintage season came the aftermath -- and Cenbe."

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Thread

Migrate Stretch to New UEFI Build? Patrick Bartek <nemommxiv@gmail.com> - 2019-01-11 01:00 +0100
  Re: Migrate Stretch to New UEFI Build? deloptes <deloptes@gmail.com> - 2019-01-11 08:40 +0100
    Re: Migrate Stretch to New UEFI Build? Patrick Bartek <nemommxiv@gmail.com> - 2019-01-12 02:10 +0100
      Re: Migrate Stretch to New UEFI Build? deloptes <deloptes@gmail.com> - 2019-01-12 08:30 +0100
  Re: Migrate Stretch to New UEFI Build? Michael Stone <mstone@debian.org> - 2019-01-11 13:20 +0100
    Re: Migrate Stretch to New UEFI Build? Patrick Bartek <nemommxiv@gmail.com> - 2019-01-12 02:00 +0100
      Re: Migrate Stretch to New UEFI Build? Michael Stone <mstone@debian.org> - 2019-01-12 03:20 +0100
        Re: Migrate Stretch to New UEFI Build? Glenn Holmer <glenn.holmer@gmail.com> - 2019-01-12 17:30 +0100
        Re: Migrate Stretch to New UEFI Build? Patrick Bartek <nemommxiv@gmail.com> - 2019-01-13 03:10 +0100
          Re: Migrate Stretch to New UEFI Build? Stefan Monnier <monnier@iro.umontreal.ca> - 2019-01-13 15:40 +0100
            Re: Migrate Stretch to New UEFI Build? Patrick Bartek <nemommxiv@gmail.com> - 2019-01-13 21:20 +0100
              Re: Migrate Stretch to New UEFI Build? deloptes <deloptes@gmail.com> - 2019-01-13 23:20 +0100
                Re: Migrate Stretch to New UEFI Build? Patrick Bartek <nemommxiv@gmail.com> - 2019-01-14 23:30 +0100
                Re: Migrate Stretch to New UEFI Build? deloptes <deloptes@gmail.com> - 2019-01-14 23:50 +0100
                Re: Migrate Stretch to New UEFI Build? Patrick Bartek <nemommxiv@gmail.com> - 2019-01-16 00:00 +0100
              Re: Migrate Stretch to New UEFI Build? Stefan Monnier <monnier@iro.umontreal.ca> - 2019-01-14 04:40 +0100
                Re: Migrate Stretch to New UEFI Build? Patrick Bartek <nemommxiv@gmail.com> - 2019-01-14 23:40 +0100

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