Fix: Grub rescue after deleting ubuntu partition | Unlimited Solutions
55Hi everyone,
In this video, I will be showing how to fix If GRUB RESCUE appear after deleting ubuntu partition.
This lead to the error: unknown filesystem: grub rescue
You can also try this alternative way.
set boot=(hd0,msdos6)
set prefix=(hd0,msdos6)/boot/grub
insmod normal
normal
Once all the 4 commands are typed, automatically the grub loads allowing you to chose the OS to boot into.
once the boot option is got... Boot into Ubuntu and then reinstall the grub using the following commands
sudo update-grub
sudo grub-install /dev/sda
Some times the boot file might not be there on (hd0,msdos6), in this situation, you can type ls and find out all the partitions Example :
grub rescue ls
(hd0), (hd0,msdos5),(hd0,msdos6),(hd0,msdos7),(hd0,msdos8)
So use ls to find the boot folder. Eg:
grub rescue ls (hd0,msdos5)
no file system found
grub rescue ls (hd0,msdos6)
ext4: file system
So, when a message that comes like ext4 or any other file system exists, the boot file is present in that partition. So in the above 4 statements, substitute (hd0,msdos6) with the partition you have found containing the file system.
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