grub rescue error

grub rescue error : unknown filesystem

If you have tried following commands and still you are getting grub rescue error.
ls
ls (hd0,msdosx)/ #where x is the number depends on ls output.In this case,it is 6
set prefix=(hd0,6)/boot/grub
set root=(hd0,6)
insmod normal
normal
If insmod normal command is not working and showing unknown file system error.

Solution :
Boot your linux with pendrive or cd/dvd.
Select option "Run without installing". Now you can open terminal.
You need to scan the filesystem to resolve errors. Run command
sudo fsck /dev/sda1
where /dev/sda1 is the root partition of your hard disk.

Once it scans and checks complete filesystem, reboot your system.
You will not end up with grub rescue error.

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