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Re: Secure boot - Uefi installation

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Le 20/04/2017 à 02:36, Joel Rees a écrit :
> On Thu, Apr 20, 2017 at 4:02 AM, Diamantis Karagkiaouris
> <diamantis.karagkiaouris.dev@gmail.com> wrote:
>> I am really pissed off with the installation as it failed miserably.
>
> If it fails after disabling UEFI, you probably have a machine with a
> BIOS that doesn't really disable UEFI when you tell it to nicely. (I
> hear some won't allow it at all.

I have a very old (~2007) UEFI motherboard which allows to enable or 
disable EFI boot, but it seems that many recent UEFI firmwares don't 
allow to disable EFI boot. At best they allow to enable or disable 
legacy boot (in BIOS compatibility mode), but EFI boot sources keep 
precedence when available. I have seen a few netbooks with 32-bit UEFI 
firwares which did not support legacy boot at all.

>> It asks me if i want to force uefi and then it fails on grub configuration.
>
> What do you mean by force UEFI?

I suspect it is the question asked by the installer when booted in EFI 
mode but it finds a legacy boot system on a disk. If you answer to force 
UEFI, it proceeds to install GRUB EFI. Otherwise, it proceeds to install 
GRUB BIOS instead.

It would mean that the Debian installer did boot in EFI mode.
Installing GRUB EFI requires an EFI system partition so if you choose 
custom partitioning, you must create one if it does not exist.

You can get more information about the failure by looking up the 
installer logs in /var/log, or by running grub-install and update-grub 
manually in a shell.

>> In opensuse i didnt have this issue.

openSUSE bought a signed key for secure boot.

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Thread

Secure boot - Uefi installation Karagkiaouris Diamantis <diamantis.karagkiaouris.dev@gmail.com> - 2017-04-17 23:40 +0200
  Re: Secure boot - Uefi installation Mark Fletcher <mark27q1@gmail.com> - 2017-04-18 01:30 +0200
    Re: Secure boot - Uefi installation Tony Baldwin <tonybaldwin@gmx.com> - 2017-04-18 05:50 +0200
    Re: Secure boot - Uefi installation Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-04-19 21:00 +0200
      Re: Secure boot - Uefi installation Diamantis Karagkiaouris <diamantis.karagkiaouris.dev@gmail.com> - 2017-04-19 21:10 +0200
        Re: Secure boot - Uefi installation Joel Rees <joel.rees@gmail.com> - 2017-04-20 02:40 +0200
          Re: Secure boot - Uefi installation Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-04-20 20:30 +0200
      Re: Secure boot - Uefi installation Mark Fletcher <mark27q1@gmail.com> - 2017-04-20 00:50 +0200
        Re: Secure boot - Uefi installation Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-04-20 07:10 +0200
  Re: Secure boot - Uefi installation solitone <solitone@mail.com> - 2017-04-18 07:40 +0200
  Re: Secure boot - Uefi installation Kent West <westk@acu.edu> - 2017-04-20 15:50 +0200
    Re: Secure boot - Uefi installation Kent West <westk@acu.edu> - 2017-04-20 15:50 +0200
    Re: Secure boot - Uefi installation solitone <solitone@mail.com> - 2017-04-20 15:50 +0200
      libreboot? Doc to follow? -- Re: Secure boot - Uefi installation fc <fc@AreYouForThePeople.org> - 2017-04-20 21:00 +0200
        Re: libreboot? Doc to follow? -- Re: Secure boot - Uefi installation Steve McIntyre <steve@einval.com> - 2017-04-21 00:40 +0200
          Re: libreboot? Doc to follow? -- Re: Secure boot - Uefi installation Joel Rees <joel.rees@gmail.com> - 2017-04-22 02:00 +0200
      RE: Secure boot - Uefi installation Bonno Bloksma <b.bloksma@tio.nl> - 2017-04-22 01:00 +0200
        Re: Secure boot - Uefi installation Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-04-22 09:20 +0200
    Re: Secure boot - Uefi installation Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-04-20 20:10 +0200
      Re: Secure boot - Uefi installation Steve McIntyre <steve@einval.com> - 2017-04-21 00:40 +0200
  Re: Secure boot - Uefi installation Joel Rees <joel.rees@gmail.com> - 2017-04-21 05:00 +0200

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