Grub install ошибка не удалось найти каталог efi

asked Nov 25, 2016 at 13:49

Try this:

Boot the Ubuntu Live Usb-Dvd.

Open a terminal,

Press Ctrl+Alt+T

Run it:

sudo -i
mount /dev/sda2 /mnt
mount /dev/sda1 /mnt/boot/efi
grub-install --boot-directory=/mnt/boot --bootloader-id=ubuntu  --target=x86_64-efi --efi-directory=/mnt/boot/efi  
reboot

answered Nov 25, 2016 at 15:28

Elder GeekElder Geek

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It’s very hard to help you because you don’t know basic commands… but I’ll try okay?

• With fdisk -l you list your current partition, like your image.
• With your image I can see that you have /dev/sda1 as EFI System, /dev/sda10 as Linux filesystem and /dev/sda11 as Linux swap. Keep this information.

• When you boot with a live cd you must do a chroot for access your system, in other words, an operation that changes the apparent root directory for the current running process and its children. Lets go:

• mount your system at /mnt. Remember? Linux filesystem? Yes. It’s /dev/sda10. So do command:

          
  sudo mount /dev/sda10 /mnt.

  You are using sudo because you must have administrator permissions to do it.

• So, mount the temporary filesystems needed for programs work, with the commands:

          
  sudo mount --bind /dev /mnt/dev
        
sudo mount --bind /dev/pts /mnt/dev/pts
        
sudo mount --bind /proc /mnt/proc
        
sudo mount --bind /sys /mnt/sys

• You are modifying your boot, so you need your /boot partition too. Some systems uses the same partition for the /boot directory and system root (/). If you don’t know what is your case, so at this point check if you have files in the folder /mnt/boot/ (you will find your kernel images, configurations , etc).

     — If the /mnt/boot folder is empty, so you need mount the /boot partition. The only other possibly usable partition on your case is /dev/sda1, so will be it. Mount at /mnt/boot.

     — If you found the files, so the another partition at /dev/sda1 should be really the EFI Filesystem, and it must be mounted at /mnt/boot/EFI.

• With all mounted,change root directory using:

          
  sudo chroot /mnt /bin/bash

• Now, inside chroot, you can install grub:

  sudo grub-install /dev/sda

answered Oct 31, 2016 at 6:03

I never had the following problem when I used to install Arch on an HDD.

But not on my new SSD, this is what I’m doing (note that when I do fdisk -l I can see the SSD has a GPT partitioning table):

1. I have been reading the following guides all day (and I’m following them):
https://wiki.archlinux.org/index.php/Installation_guide
https://wiki.archlinux.org/index.php/Partitioning
https://wiki.archlinux.org/index.php/Arch_boot_process

2. cgdisk /dev/sda and I create 3 partitions:
sda1; 2GB, code:ef00, name=efi
sda2; 200GB, code:8300, name=root
sda3; ~750GB, code:8302, name=home

3. I format all 3 partitions:
mkfs.ext4 /dev/sda1
mkfs.ext4 /dev/sda2
mkfs.ext4 /dev/sda3

4. Mount root:
mount /dev/sda2 /mnt

5. Install base:
pacstrap /mnt base base-devel linux grub efibootmgr
mkinitcpio -p linux

6. : All of the following commands give the same error: grub-install: error «cannot find EFI directory»
grub-install /dev/sda
grub-install —target=x86_64-efi /dev/sda
grub-install —efi-directory=/boot/efi —target=x86_64-efi /dev/sda

Can someone tell me what I am doing wrong please?

Last edited by light9876 (2020-01-10 18:37:40)

You forgot to mount the EFI system partition, it should be FAT-formatted (not ext4) and you should (arch-)chroot in before running the GRUB commands.

Step 4 should be

# mount /dev/sda2 /mnt
# mkdir -p /mnt/boot/efi
# mount /dev/sda1 /mnt/boot/efi

And step 6 should start with

Note that the UEFI grub-install command doesn’t need a block device.

EDIT: and the mkinitcpio command should be run from the chroot (although you probably don’t need to run it at all).

Last edited by Head_on_a_Stick (2020-01-10 17:11:24)

Thank you, I will try this immediately!

I am already doing arch-chroot /mnt but I forgot to mention it.

I will try now to format correctly and to mount /mnt/boot/efi

Last edited by light9876 (2020-01-10 17:15:58)

Thank you so much everything works okay now!

Only for future reference: the information you provided is written here:
https://wiki.archlinux.org/index.php/GR … allation_2

One final question:
I installed lxde and lxdm; then I logged in my user account. Now the partition /dev/sda3 that I created for /home, is not mounted at /home.

Instead, /home directory and all of its contents are resident on /dev/sda2

How can I fix this please?

Last edited by light9876 (2020-01-10 18:46:36)

Create an fstab line to mount /home correctly then move the contents over to the new partition.

If you need more help with that then please open a new thread, it is off-topic here.

Thank you so much! I am very happy with the generous support you and everyone else have given me! : ) God bless you!

Last edited by light9876 (2020-01-10 20:10:39)