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Re: Secure Boot won't let boot into Debian

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rodolfo.medina@gmail.com wrote:
>Steve McIntyre <steve@einval.com> writes:
>> rodolfo.medina@gmail.com wrote:
>>>Hi all.
>>>
>>>I frehly installed Debian Sid in dual boot with Windows 10 on my brand new
>>>Lenovo desktop pc but it won't boot into Debian system I suspect because of
>>>the new Secure Boot policy.  I want to disable it but the problem is that
>>>there's no Secure Boot option anywhere in its Bios.  In fact, in the Security
>>>submenu, there are only the options for administrator and power-on password
>>>setting.
>>>
>>>What do you suggest me to do?
>>
>> Are you totally sure it's a Secure Boot issue?
>
>No.
>
>> What exactly happens at boot? Does it just boot straight into the Windows
>> installation?
>
>It does.
>
>> Have you managed to install Debian
>
>I did.
>
>> , or will it just not boot the installer?
>
>It did boot it and the installation went - apparently - all right.

Right, OK. Did the installer say it was booting in UEFI mode? It says
so prominently on the first bootloader screen. If so, then you clearly
don't have a Secure Boot problem if the installer worked.

Alternatively, you may have booted the installer in BIOS/CSM mode, in
which case it might install but fail to install a boot loader at the
end of the process. *Or* you have installed in UEFI mode, but the
firmware on your computer is just ignoring the Debian-installed boot
option. That's always possible on some bad UEFI implementations,
unfortunately.

>> If you go into the BIOS/firmware config program, does that show you a
>> list of boot options including Windows?
>
>What do you mean by BIOS/firmware config program?  I wouldn't know...

The BIOS setup menus, if that's clearer. 

Another option would be to boot the installer again in rescue mode and
have a look at what partitions you have, and what bootloader(s) you
can find on /boot/efi for a UEFI system.

-- 
Steve McIntyre, Cambridge, UK.                                steve@einval.com
< sladen> I actually stayed in a hotel and arrived to find a post-it
          note stuck to the mini-bar saying "Paul: This fridge and
          fittings are the correct way around and do not need altering"

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Thread

Secure Boot won't let boot into Debian Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-02-22 22:50 +0100
  Re: Secure Boot won't let boot into Debian Sven Hartge <sven@svenhartge.de> - 2017-02-22 23:30 +0100
  Re: Secure Boot won't let boot into Debian Mark Fletcher <mark27q1@gmail.com> - 2017-02-23 13:00 +0100
    Re: Secure Boot won't let boot into Debian Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-02-23 16:00 +0100
  Re: Secure Boot won't let boot into Debian Eero Volotinen <eero.volotinen@iki.fi> - 2017-02-23 13:40 +0100
    Re: Secure Boot won't let boot into Debian Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-02-23 15:30 +0100
      Re: Secure Boot won't let boot into Debian Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-02-23 20:50 +0100
  Re: Secure Boot won't let boot into Debian Steve McIntyre <steve@einval.com> - 2017-02-23 18:00 +0100
    Re: Secure Boot won't let boot into Debian Ric Moore <wayward4now@gmail.com> - 2017-02-23 18:40 +0100
    Re: Secure Boot won't let boot into Debian Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-02-23 20:40 +0100
      Re: Secure Boot won't let boot into Debian Steve McIntyre <steve@einval.com> - 2017-02-24 01:40 +0100
        Re: Secure Boot won't let boot into Debian Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-02-24 07:20 +0100
          Re: Secure Boot won't let boot into Debian Steve McIntyre <steve@einval.com> - 2017-02-24 14:50 +0100
  Re: Secure Boot won't let boot into Debian GiaThnYgeia <GiaThnYgeia@openmailbox.org> - 2017-02-23 21:40 +0100
  [solved?] Re: Secure Boot won't let boot into Debian Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-02-25 09:40 +0100
    Re: [solved?] Re: Secure Boot won't let boot into Debian Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-02-25 10:10 +0100
      Re: [solved?] Re: Secure Boot won't let boot into Debian Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-02-25 12:00 +0100
        Re: [solved?] Re: Secure Boot won't let boot into Debian GiaThnYgeia <GiaThnYgeia@openmailbox.org> - 2017-02-25 13:30 +0100
          Re: [solved?] Re: Secure Boot won't let boot into Debian Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-02-25 14:00 +0100
            Re: [solved?] Re: Secure Boot won't let boot into Debian Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-02-25 14:10 +0100
              Re: [solved?] Re: Secure Boot won't let boot into Debian deloptes <deloptes@gmail.com> - 2017-02-25 14:30 +0100
              Re: [solved?] Re: Secure Boot won't let boot into Debian Ben Caradoc-Davies <ben@transient.nz> - 2017-02-25 23:50 +0100
                Re: [solved?] Re: Secure Boot won't let boot into Debian Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-02-28 08:30 +0100
    Re: [solved?] Re: Secure Boot won't let boot into Debian Patrick Bartek <nemommxiv@gmail.com> - 2017-02-25 16:10 +0100

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