Re: How to restore grub in UEFI mode

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 <[email protected]>:

> 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 <[email protected]>:
>
>> 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?
>>
>
>