I have here a new bought laptop. It's the first device with (U)EFI I was working with. At first I did not get the installation running, so I switched back to BIOS legacy mode and installed ubuntu in that mode.

All right. Now I want to add the preinstalled windows back into the boot loader to allow multiboot. This works only via EFI. So I googled around and found this link. I modified things a bit as I was after some tasting able to boot in efi mode the grub on the live cd and then booted manually into linux.

So in the end I have a grub installed on my EFI system partition and I am able to boot into linux directly from EFI. Now I have seen, that the grub.cfg has two locations: /boot/grub/ and /boot/efi/EFI/grub/. On runing update-grub only the version in /boot/grub/ will be affected. For the (manual) installation this is not an issue but any kernel update will NOT alter the important /boot/efi/EFI/grub/grub.cfg. I tried creating a symlink but it seems that the file gets deleted before rewriting. So the link is lost.

So my questions in detail:

• What have I to do to make the updates automatically? Should I mount -o bind the directory /boot/efi/EFI/grub to /boot/grub? Any better solutions?


• Is it possible to make grub look into another position?


• Where will an updated grub.efi be installed?


• Are there other issues that I forgot so far?