Please see -
Where it says something like -
To solve initramfs error, you need to repair the filesystem in the corrupted partition using "fsck" command like below:
(initramfs) fsck /dev/sda1 -y
Replace /dev/sda1 with your partition name. In your system, it could be /dev/sdb1, /dev/sdc1 etc.
Now it will start to fix all bad blocks automatically in the filesystem.
After a couple of minutes, you will see an output like below:
**/dev/sda1: ***** FILE SYSTEM WAS MODIFIED ******* /dev/sda1: 497733/30531584 files (1.5% non-contiguous), ........
Good luck @Subrag
Edit: Also see -