How to Fix Grub Error - no such partition | Entering rescue mode

Описание

How to fix grub Error: "no such partition. Entering rescue mode" without Reinstalling OS. This video covers Error: no such partition, Entering rescue mode, error no such device grub rescue and grub rescue windows 10 repair.

Type the following commands

ls
It will show you a list of partions you have made. for ex.
(hd0),(hd0,msdos1)(hd0,msdos2)

Find which drive is your Ubuntu root for which type the following:
set prefix= (hd0,msdos1)/boot/grub
If it’s not the root drive you will get an error message "unknown filesystem". Try next partition i.e (hd0,msdos2)
If you are not getting an error, you have found your root drive. You can proceed to the next command after that:

set prefix=(hd0,msdos1)/boot/grub
insmod normal
normal
Your PC will now boot successfully. Now login.
Open Terminal
sudo update-grub
sudo grub-install /dev/sda

If sudo update-grub didn't work, type sudo grub-update

if above steps didnt work then try it https://www.youtube.com/watch?v=7JfU2lFucgQ or
reinstall OS.

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