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Cannot find EFI directory: issue with grub-install

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9

8

I was trying to rescue GRUB in Linux. I was able to login in the OS following this tutorial:

https://www.lisenet.com/2014/grub2-rescue-mode-error-unknown-filesystem/

I have to upgrade GRUB to fix the problem. However, when I run grub-install, I get an error:

$ grub-install /dev/sda

grub-install: error: cannot find EFI directory.

My file system contains sda4, sda5, and sda6 for the EFI system, Linux swap, and Linux file system respectively.

I am not very experienced using mount or other commands.

linux grub

share|improve this question

edited 37 mins ago

Jeff Schaller♦

50.2k1111 gold badges7474 silver badges167167 bronze badges

asked Nov 18 '17 at 18:51

krishnakantkrishnakant

7711 gold badge22 silver badges1212 bronze badges

add a comment
 | 

9

8

I was trying to rescue GRUB in Linux. I was able to login in the OS following this tutorial:

https://www.lisenet.com/2014/grub2-rescue-mode-error-unknown-filesystem/

I have to upgrade GRUB to fix the problem. However, when I run grub-install, I get an error:

$ grub-install /dev/sda

grub-install: error: cannot find EFI directory.

My file system contains sda4, sda5, and sda6 for the EFI system, Linux swap, and Linux file system respectively.

I am not very experienced using mount or other commands.

linux grub

share|improve this question

edited 37 mins ago

Jeff Schaller♦

50.2k1111 gold badges7474 silver badges167167 bronze badges

asked Nov 18 '17 at 18:51

krishnakantkrishnakant

7711 gold badge22 silver badges1212 bronze badges

add a comment
 | 

I was trying to rescue GRUB in Linux. I was able to login in the OS following this tutorial:

https://www.lisenet.com/2014/grub2-rescue-mode-error-unknown-filesystem/

I have to upgrade GRUB to fix the problem. However, when I run grub-install, I get an error:

$ grub-install /dev/sda

grub-install: error: cannot find EFI directory.

My file system contains sda4, sda5, and sda6 for the EFI system, Linux swap, and Linux file system respectively.

I am not very experienced using mount or other commands.

linux grub

share|improve this question

edited 37 mins ago

Jeff Schaller♦

50.2k1111 gold badges7474 silver badges167167 bronze badges

asked Nov 18 '17 at 18:51

krishnakantkrishnakant

7711 gold badge22 silver badges1212 bronze badges

$ grub-install /dev/sda

grub-install: error: cannot find EFI directory.

share|improve this question

edited 37 mins ago

Jeff Schaller♦

50.2k1111 gold badges7474 silver badges167167 bronze badges

asked Nov 18 '17 at 18:51

krishnakantkrishnakant

7711 gold badge22 silver badges1212 bronze badges

share|improve this question

edited 37 mins ago

Jeff Schaller♦

50.2k1111 gold badges7474 silver badges167167 bronze badges

asked Nov 18 '17 at 18:51

krishnakantkrishnakant

7711 gold badge22 silver badges1212 bronze badges

edited 37 mins ago

Jeff Schaller♦

50.2k1111 gold badges7474 silver badges167167 bronze badges

edited 37 mins ago

Jeff Schaller♦

50.2k1111 gold badges7474 silver badges167167 bronze badges

asked Nov 18 '17 at 18:51

krishnakantkrishnakant

7711 gold badge22 silver badges1212 bronze badges

asked Nov 18 '17 at 18:51

krishnakantkrishnakant

7711 gold badge22 silver badges1212 bronze badges

2 Answers
2

active

oldest

votes

8

When you run grub-install by default it assumes the EFI system is mounted as /boot/efi

It depends on your distribution where EFI system is mounted and on some distributions it isn't mounted after boot.

First check if /boot/efi is mounted with

mount | grep /boot/efi

If that doesn't work try

mount | grep /dev/sda6

To see if its amounted elsewhere. If neither do:

mount /dev/sda6 /mnt

Now run:

grub-install --efi-directory=/mnt/efi

grub-mkconfig -o /boot/grub/grub.cfg

share

answered Nov 19 '17 at 2:44

jdwolfjdwolf

3,10833 silver badges1919 bronze badges

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Thanks, In the grub-install --efi-directory=/boot/EFI as i chroot into /mnt.
  
  – krishnakant
  Nov 26 '17 at 19:20
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Maybe stupid Q but I don't have an EFI dir. Where do I get one? I mean it is supposed to contain files, which command can recreate it?
  
  – Lennart Rolland
  Aug 29 at 0:18
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @LennartRolland If you have a UEFI compatible system then your system drive will be GPT partitioned and contains a "UEFI System partition." usually the first partition and will be of the type EF00. Many distributions will mount this by default as /boot/efi to among other things allow the GRUB boot loader to update its files. If not you'll have to mount it yourself and add it to fstab. You might also have a UEFI system but that is using legacy mode which means your partitions will be msdos type and you won't have a /boot/efi. Weirder configurations exist but that covers the majority of them.
  
  – jdwolf
  Sep 8 at 20:43
  
  
  

  
  
  
  

add a comment
 | 

1

Grub rescue mode can be treated as

set root=(hd0,gpt6)

set prefix=(hd0,gpt6)/boot/grub

insmod normal

normal

Once you login, enter sudo update-grub && sudo grub-install /dev/sda.

share|improve this answer

answered Nov 19 '17 at 17:46

defaltdefalt

22422 gold badges55 silver badges1414 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Should the grub-install not the done before the update-grub?
  
  – danger89
  Oct 18 '18 at 22:13
  
  
  

  
  
  
  

add a comment
 | 

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8

When you run grub-install by default it assumes the EFI system is mounted as /boot/efi

It depends on your distribution where EFI system is mounted and on some distributions it isn't mounted after boot.

First check if /boot/efi is mounted with

mount | grep /boot/efi

If that doesn't work try

mount | grep /dev/sda6

To see if its amounted elsewhere. If neither do:

mount /dev/sda6 /mnt

Now run:

grub-install --efi-directory=/mnt/efi

grub-mkconfig -o /boot/grub/grub.cfg

share

answered Nov 19 '17 at 2:44

jdwolfjdwolf

3,10833 silver badges1919 bronze badges

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Thanks, In the grub-install --efi-directory=/boot/EFI as i chroot into /mnt.
  
  – krishnakant
  Nov 26 '17 at 19:20
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Maybe stupid Q but I don't have an EFI dir. Where do I get one? I mean it is supposed to contain files, which command can recreate it?
  
  – Lennart Rolland
  Aug 29 at 0:18
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @LennartRolland If you have a UEFI compatible system then your system drive will be GPT partitioned and contains a "UEFI System partition." usually the first partition and will be of the type EF00. Many distributions will mount this by default as /boot/efi to among other things allow the GRUB boot loader to update its files. If not you'll have to mount it yourself and add it to fstab. You might also have a UEFI system but that is using legacy mode which means your partitions will be msdos type and you won't have a /boot/efi. Weirder configurations exist but that covers the majority of them.
  
  – jdwolf
  Sep 8 at 20:43
  
  
  

  
  
  
  

add a comment
 | 

8

When you run grub-install by default it assumes the EFI system is mounted as /boot/efi

It depends on your distribution where EFI system is mounted and on some distributions it isn't mounted after boot.

First check if /boot/efi is mounted with

mount | grep /boot/efi

If that doesn't work try

mount | grep /dev/sda6

To see if its amounted elsewhere. If neither do:

mount /dev/sda6 /mnt

Now run:

grub-install --efi-directory=/mnt/efi

grub-mkconfig -o /boot/grub/grub.cfg

share

answered Nov 19 '17 at 2:44

jdwolfjdwolf

3,10833 silver badges1919 bronze badges

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Thanks, In the grub-install --efi-directory=/boot/EFI as i chroot into /mnt.
  
  – krishnakant
  Nov 26 '17 at 19:20
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Maybe stupid Q but I don't have an EFI dir. Where do I get one? I mean it is supposed to contain files, which command can recreate it?
  
  – Lennart Rolland
  Aug 29 at 0:18
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @LennartRolland If you have a UEFI compatible system then your system drive will be GPT partitioned and contains a "UEFI System partition." usually the first partition and will be of the type EF00. Many distributions will mount this by default as /boot/efi to among other things allow the GRUB boot loader to update its files. If not you'll have to mount it yourself and add it to fstab. You might also have a UEFI system but that is using legacy mode which means your partitions will be msdos type and you won't have a /boot/efi. Weirder configurations exist but that covers the majority of them.
  
  – jdwolf
  Sep 8 at 20:43
  
  
  

  
  
  
  

add a comment
 | 

When you run grub-install by default it assumes the EFI system is mounted as /boot/efi

It depends on your distribution where EFI system is mounted and on some distributions it isn't mounted after boot.

First check if /boot/efi is mounted with

mount | grep /boot/efi

If that doesn't work try

mount | grep /dev/sda6

To see if its amounted elsewhere. If neither do:

mount /dev/sda6 /mnt

Now run:

grub-install --efi-directory=/mnt/efi

grub-mkconfig -o /boot/grub/grub.cfg

share

answered Nov 19 '17 at 2:44

jdwolfjdwolf

3,10833 silver badges1919 bronze badges

mount | grep /boot/efi

mount | grep /dev/sda6

mount /dev/sda6 /mnt

grub-install --efi-directory=/mnt/efi

grub-mkconfig -o /boot/grub/grub.cfg

share

answered Nov 19 '17 at 2:44

jdwolfjdwolf

3,10833 silver badges1919 bronze badges

answered Nov 19 '17 at 2:44

jdwolfjdwolf

3,10833 silver badges1919 bronze badges

answered Nov 19 '17 at 2:44

jdwolfjdwolf

3,10833 silver badges1919 bronze badges

1

Grub rescue mode can be treated as

set root=(hd0,gpt6)

set prefix=(hd0,gpt6)/boot/grub

insmod normal

normal

Once you login, enter sudo update-grub && sudo grub-install /dev/sda.

share|improve this answer

answered Nov 19 '17 at 17:46

defaltdefalt

22422 gold badges55 silver badges1414 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Should the grub-install not the done before the update-grub?
  
  – danger89
  Oct 18 '18 at 22:13
  
  
  

  
  
  
  

add a comment
 | 

1

Grub rescue mode can be treated as

set root=(hd0,gpt6)

set prefix=(hd0,gpt6)/boot/grub

insmod normal

normal

Once you login, enter sudo update-grub && sudo grub-install /dev/sda.

share|improve this answer

answered Nov 19 '17 at 17:46

defaltdefalt

22422 gold badges55 silver badges1414 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Should the grub-install not the done before the update-grub?
  
  – danger89
  Oct 18 '18 at 22:13
  
  
  

  
  
  
  

add a comment
 | 

Grub rescue mode can be treated as

set root=(hd0,gpt6)

set prefix=(hd0,gpt6)/boot/grub

insmod normal

normal

Once you login, enter sudo update-grub && sudo grub-install /dev/sda.

share|improve this answer

answered Nov 19 '17 at 17:46

defaltdefalt

22422 gold badges55 silver badges1414 bronze badges

set root=(hd0,gpt6)

set prefix=(hd0,gpt6)/boot/grub

insmod normal

normal

share|improve this answer

answered Nov 19 '17 at 17:46

defaltdefalt

22422 gold badges55 silver badges1414 bronze badges

answered Nov 19 '17 at 17:46

defaltdefalt

22422 gold badges55 silver badges1414 bronze badges

answered Nov 19 '17 at 17:46

defaltdefalt

22422 gold badges55 silver badges1414 bronze badges