How to install grub bootloader manually

If we get Grub rescue error message or Grub bootloader not showing to boot into Linux operating system, this method will help to solve all those problems. In this video we will see how to install grub bootloader manually.

Comments to install grub bootloader :
sudo mount /dev/sdax /media (where sdax x = linux partition number)
sudo mount /dev /media/dev
sudo mount /sys /media/sys
sudo mount /proc /media/proc
sudo grub-install /dev/sda

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Add windows entry to grub bootloader :

[sarath]

Thank you so much dear.. You have saved my day on today morning as I was deleted the Grub noot loader yesterday mid night d there was emergency in today morning itself for the computer..

[sohamdwivedi]

it worked man, I have been trying other methods since last 4 days but nothing worked for me but after I followed your steps i am now able to dual boot without any error. And none of my files are damaged. Thanks a very lot :D

[synonymous]

Thank you so much! This worked perfectly for me, especially that first step where you tell you have to select the partition with linux installed. It was very helpful to me, because I was installing grub directly to /dev/sda or I was incorrectly mounting it. I spent 4 hours diagnosing this, after trying to install android on pc ;/

I'm never gonna do it again. I think I'm just happy with dual boot for now.

[vladislavkaras]

It worked successfully for me on Legacy BIOS/MBR disk table with dualboot Windows 8.1
Thank you!

[DarkKnight-ree]

Thanks 👍 it worked, the sudo chroot /media is very important

[yograj]

Thanks brother it worked for me and saved me from wasting my 8hours

[billybobjankens]

Thanks so much, I uninstalled my bootloader on accident and forgot ubuntu was still on my computer, I was dual booting and used Windows 10 so much!

[odalmerpimentel]

i have this error: cannot find EPI directory

[anonymouscyborg]

I was being a idot for like 8 hours, u saved me thanks alot

[touhami_dz]

thank u man it worked
i installed linux mint with windows and i dont know how to avoid installing grub manually i guess im noob

[thedharmendrasharmaa]

Cannot find efie directory error after grub install command. Please help 😢

[calholli]

On the newest unbuntu, your second command says mount pint does not exist..

[MuhammadRazib]

It worked man! thank you so much brother

[syedasadkhalid]

Bro thanks so much i had dual boot manjaro and i deleted it .. it broke grub but you saved it

[marcin_]

I Don't know how you did it yet but you're fucking awesome.

[sergiovicente]

It works very fine for me, thank U a lot. It fixes a bad grub installation for a Q4OS distribution.

[Shivam_]

grub loading wwelcome to grub error: symbol 'grub_disk_native_sectors' not found.

[ajayveigasgaming]

Where is your EFI partition directory
Is it on sda 1 or sda 2

[DrexelZzhoren]

I did the exact same thing but it says the grub-install command isn’t found

[mcrnup]

So, with two different SSD, each one with a different Linux distribuiton (Red Hat and Ubuntu) already installed, is that possible to manual create a menu entry to choose between those installed systems ?