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 <rof20...@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 <realba...@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? >> > >
