Executing 'grub-install dummy' failed.

[AlexZander]

I followed same, But... I am getting this error

grub-install: warning: Cannot set EFI variable Boot0004.
grub-install: warning: vars_set_variable: write() failed: No space left on device. grub-install: warning: _efi_set_variable_mode: ops->set_variable() failed: No such file or directory.
grub-install: error: failed to register the EFI boot entry: No such file or directory.

[_defalt]

This temporary fix may work: https://unix.stackexchange.com/quest...llation-failed

I'll soon add this fix to make proper instructions.

Else, try this @AlexZander

Boot into kali live,

mount /dev/sda* /mnt
mount --bind /dev /mnt/dev
mount --bind /proc /mnt/proc
mount --bind /sys /mnt/sys
mkdir /mnt/sys/firmware/efi/efivars
mount --bind /sys/firmware/efi/efivars /mnt/sys/firmware/efi/efivars
rm /sys/firmware/efi/efivars/dump-*
mkdir /mnt/boot/efi
mount /dev/sda+ /mnt/boot/efi
mount -o remount,rw /dev/sda+ /mnt/boot/efi
mkdir /mnt/hostrun
mount --bind /run /mnt/hostrun
chroot /mnt
mkdir /run/lvm
mount --bind /hostrun/lvm /run/lvm
grub-install /dev/sda
update-grub
exit
umount /mnt/dev
umount /mnt/proc
umount /mnt/sys/firmware/efi/efivars
umount /mnt/sys
umount /mnt/boot/efi
umount /mnt/hostrun
umount /mnt/run/lvm
umount /mnt
REBOOT

/dev/sda* is your linux filesystem. Like mine is /dev/sda6
/dev/sda+ is your EFI partition which is most likely /dev/sda1.
Use fdisk -l to list all partitions.

[AlexZander]

I have followed above command, Now... I am able to install grub Successfully, But.... While "update-grub"


Generating grub configuration file ...
Found background image: /usr/share/images/desktop-base/desktop-grub.png
Found linux image: /boot/vmlinuz-4.19.0-kali4-amd64
Found initrd image: /boot/initrd.img-4.19.0-kali4-amd64
WARNING: Device /dev/loop0 not initialized in udev database even after waiting 10000000 microseconds.
WARNING: Device /dev/sda not initialized in udev database even after waiting 10000000 microseconds.
WARNING: Device /dev/sda1 not initialized in udev database even after waiting 10000000 microseconds.
WARNING: Device /dev/sda2 not initialized in udev database even after waiting 10000000 microseconds.
WARNING: Device /dev/sda3 not initialized in udev database even after waiting 10000000 microseconds.
WARNING: Device /dev/sda4 not initialized in udev database even after waiting 10000000 microseconds.
WARNING: Device /dev/sda5 not initialized in udev database even after waiting 10000000 microseconds.
WARNING: Device /dev/sda6 not initialized in udev database even after waiting 10000000 microseconds.
WARNING: Device /dev/sda7 not initialized in udev database even after waiting 10000000 microseconds.
WARNING: Device /dev/sda8 not initialized in udev database even after waiting 10000000 microseconds.
WARNING: Device /dev/sda9 not initialized in udev database even after waiting 10000000 microseconds.
WARNING: Device /dev/loop0 not initialized in udev database even after waiting 10000000 microseconds.
WARNING: Device /dev/sda1 not initialized in udev database even after waiting 10000000 microseconds.
WARNING: Device /dev/sda2 not initialized in udev database even after waiting 10000000 microseconds.
WARNING: Device /dev/sda3 not initialized in udev database even after waiting 10000000 microseconds.
WARNING: Device /dev/sda4 not initialized in udev database even after waiting 10000000 microseconds.
WARNING: Device /dev/sda5 not initialized in udev database even after waiting 10000000 microseconds.
WARNING: Device /dev/sda6 not initialized in udev database even after waiting 10000000 microseconds.
WARNING: Device /dev/sda7 not initialized in udev database even after waiting 10000000 microseconds.
WARNING: Device /dev/sda8 not initialized in udev database even after waiting 10000000 microseconds.
WARNING: Device /dev/sda9 not initialized in udev database even after waiting 10000000 microseconds.
Adding boot menu entry for EFI firmware configuration
done



don't know what the above error mean

[marrosh]

This temporary fix may work: https://unix.stackexchange.com/quest...llation-failed

I'll soon add this fix to make proper instructions.

Else, try this @AlexZander

Boot into kali live,

mount /dev/sda* /mnt
mount --bind /dev /mnt/dev
mount --bind /proc /mnt/proc
mount --bind /sys /mnt/sys
mkdir /mnt/sys/firmware/efi/efivars
mount --bind /sys/firmware/efi/efivars /mnt/sys/firmware/efi/efivars
rm /sys/firmware/efi/efivars/dump-*
mkdir /mnt/boot/efi
mount /dev/sda+ /mnt/boot/efi
mount -o remount,rw /dev/sda+ /mnt/boot/efi
mkdir /mnt/hostrun
mount --bind /run /mnt/hostrun
chroot /mnt
mkdir /run/lvm
mount --bind /hostrun/lvm /run/lvm
grub-install /dev/sda
update-grub
exit
umount /mnt/dev
umount /mnt/proc
umount /mnt/sys/firmware/efi/efivars
umount /mnt/sys
umount /mnt/boot/efi
umount /mnt/hostrun
umount /mnt/run/lvm
umount /mnt
REBOOT

/dev/sda* is your linux filesystem. Like mine is /dev/sda6
/dev/sda+ is your EFI partition which is most likely /dev/sda1.
Use fdisk -l to list all partitions.

@_defalt Thank you for your work! Your updated post was working for me.

People, please, don't use post on top of the first page, this one is up-to-date and should work.

I was installing Kali 2020.1 over Debian 8 and during installation the problem with "Unable to install grub in dummy" came up.

note: I also removed (in Kali Live cmd) /mnt/EFI/kali/grubx64.efi after mounting #mount /dev/sda2 /mnt (sda2 is my EFI part.), but I don't think it took any effect, since installation was unsuccessful even for 2nd attempt.