Arch Linux

jacopastorius

Member

From: Italy

Registered: 2006-05-01

Posts: 134

Grub reinstalling

Hi all, after a windows update process, i was not able to boot grub anymore. So from grub rescue i booted into arch to reinstall grub but before doing anything i'd like to know if this is correct. I have a UEFI bios and and grub is installed in /boot/grub/x86_64-efi ù8or maybe in /efi/EFI??)

Do I have to issue the following to reinstall grub and make it boot again?

grub-install --target=x86_64-efi --efi-directory=/boot/grub/x86_64-efi --bootloader-id=GRUB

I also have efi partition:

[du@du ~]$ ls /efi/EFI/
Boot  GRUB  Microsoft

Or may be i have to set

--efi-directory=/efi 

?

Last edited by jacopastorius (2019-09-08 15:02:13)

nl6720

The Evil Wiki Admin

Registered: 2016-07-02

Posts: 718

Re: Grub reinstalling

--efi-directory= should point to the place where the EFI system partition is mounted, see https://wiki.archlinux.org/index.php/GR … allation_2 .
If you've mounted it to /efi, then yes you should use:

--efi-directory=/efi

It's highly possible that Windows only changed the order of UEFI boot entries, so reinstalling GRUB might not be required.
Check the UEFI boot entries with efibootmgr:

# efibootmgr -v

Head_on_a_Stick

Member

From: The Wirral

Registered: 2014-02-20

Posts: 9,003

Website

Re: Grub reinstalling

https://wiki.archlinux.org/index.php/Ue … boot_order

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