Error: Failed to install GRUB boot loader!

[SamuelHBRowland]

I was installing Debian 11 for the first time and I got this notification. Should I be concerned and is there a way to install it? Thanks all!

 

[gRaN-Ma project]

If the partition of your installation is not encrypted, you can run it with a third party bootloader like rEFInd and install grub from the terminal.
Or you can install grub manually from terminal of a live (not necessarily debian).

Or you can install grub, from the terminal of another linux distro installed on your drive.

[10leej]

6 hours ago, gRaN-Ma project said:

If your installation is not encrypted, you can run it with a third party bootloader like rEFInd and install grub from the terminal.
Or you can install grub manually from terminal of a live (not necessarily debian).

Or you can install grub, from the terminal of another linux distro installed on your drive.

So technically the system is installed so at that screen OP can hop to a TTY interface using ctrl+alt+f3

 

Then referencing this document

https://wiki.archlinux.org/title/GRUB

 

You can install grub. Debian mounts /boot/efi/ for it's esp directory. (ESP stands for Expect System Partition)

 

So your command should be something like

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

then once that complete's successfully you need to generate the configuration for grub

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

Now that that's all done, just simply enter

systemctl reboot

to reboot the system responsibly and it should boot fine.

[gRaN-Ma project]

1 hour ago, 10leej said:

So technically the system is installed so at that screen OP can hop to a TTY interface using ctrl+alt+f3

 

Then referencing this document

https://wiki.archlinux.org/title/GRUB

 

You can install grub. Debian mounts /boot/efi/ for it's esp directory. (ESP stands for Expect System Partition)

 

So your command should be something like

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

then once that complete's successfully you need to generate the configuration for grub

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

Now that that's all done, just simply enter

systemctl reboot

to reboot the system responsibly and it should boot fine.

If the partition of your installation is not encrypted, theare are many way ...The problem is when grub has compatibility issues with the bios of the machine and the partition of your installation is encrypted ... In this cases ...