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Re: How to restore grub in UEFI mode

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Well, than is diferent to me, I used only this steps that i told to you and
it works.

Look these two links:

https://wiki.debian.org/GrubEFIReinstall

and

https://www.thomas-krenn.com/en/wiki/Restore_Ubuntu_UEFI_Boot_Entries_after_BIOS_Update

Maybe help you.

2016-01-05 15:40 GMT-04:00 real bas <realbas89@gmail.com>:

> I try mount my partition /dev/sda9 in /boot/efi but say /boot/efi doesn't
> exist (no have efi directory in boot then I create it and mounted in
> /boot/efi)
> then I reinstalled grub-efi and try grub-install /dev/sda but say:
> error: /boot/efi doesn't look like an EFI partition
>
> 2016-01-05 19:34 GMT+00:00 Rodolfo <rof20004@gmail.com>:
>
>> When i recovered my grup-efi, and i remember that i reinstalled it with
>> apt-get, and automatically do the right configurations.
>>
>> Do not use grub-install, reinstall the package and leave the
>> configurations to it.
>>
>> 2016-01-05 15:31 GMT-04:00 real bas <realbas89@gmail.com>:
>>
>>> I leave it UEFI and only disable secure boot, when I use this command:
>>>    [ -d /sys/firmware/efi ] && echo EFI || echo LEGACY
>>>    return EFI normally
>>>
>>> but when I use grub-install:
>>> grub-install --root-directory=/mnt /dev/sda
>>> say: grub-install: error: cannot find EFI directory
>>>
>>> 2016-01-05 19:00 GMT+00:00 Rodolfo <rof20004@gmail.com>:
>>>
>>>> Hi,
>>>>
>>>> -change boot option to legacy mode and disable secure boot consequently
>>>>
>>>> I think in this part you do not need to turn to legacy, leave it UEFI,
>>>> only disable secure boot.
>>>>
>>>> Debian Jessie has support for UEFI boot.
>>>>
>>>> Try reinstall grub using the normal installation cd, in it has an
>>>> option to recover or access shell in your installed system.
>>>>
>>>> 2016-01-05 14:35 GMT-04:00 real bas <realbas89@gmail.com>:
>>>>
>>>>> Hi, I recently upgrade my debian (UEFI) and grub is gone.. I try to
>>>>> recovery grub but failed or I`m doing something wrong.
>>>>> This steps I following are:
>>>>> -create usb with live cd
>>>>> -change boot option to legacy mode and disable secure boot consequently
>>>>> -boot from live cd (Here, when I boot from CD and check if i`m using
>>>>> EFI or legacy, always say legacy, maybe be here the problem)
>>>>> -mount my partition / in /mnt
>>>>> -install grub in /mnt
>>>>>
>>>>> when install grub i receive the following message:
>>>>>
>>>>>> Installing for i386-pc platform.
>>>>>> grub-install: warning: this GPT partition label contains no BIOS Boot
>>>>>> Partition; embedding won't be possible.
>>>>>> grub-install: warning: Embedding is not possible.  GRUB can only be
>>>>>> installed in this setup by using blocklists.  However, blocklists are
>>>>>> UNRELIABLE and their use is discouraged..
>>>>>> grub-install: error: will not proceed with blocklists.
>>>>>>
>>>>>
>>>>> Can someone help me?
>>>>>
>>>>
>>>>
>>>
>>
>

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Thread

How to restore grub in UEFI mode real bas <realbas89@gmail.com> - 2016-01-05 20:00 +0100
  Re: How to restore grub in UEFI mode Rodolfo <rof20004@gmail.com> - 2016-01-05 20:10 +0100
    Re: How to restore grub in UEFI mode Rodolfo <rof20004@gmail.com> - 2016-01-05 20:40 +0100
      Re: How to restore grub in UEFI mode Rodolfo <rof20004@gmail.com> - 2016-01-05 20:50 +0100
        Re: How to restore grub in UEFI mode real bas <realbas89@gmail.com> - 2016-01-05 21:10 +0100
          Re: How to restore grub in UEFI mode real bas <realbas89@gmail.com> - 2016-01-06 00:10 +0100
            Re: How to restore grub in UEFI mode Rodolfo <rof20004@gmail.com> - 2016-01-06 18:00 +0100
      Re: How to restore grub in UEFI mode real bas <realbas89@gmail.com> - 2016-01-05 21:00 +0100
    Re: How to restore grub in UEFI mode real bas <realbas89@gmail.com> - 2016-01-05 20:50 +0100

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