My Laptop was working just fine a day back but it started show the following error on booting:
error: couldn't read file
So, I googled about it and used a Live-CD to use Boot-Repair as told here: "can't read file" error after installation causes system to not boot
I was given this link: http://paste.ubuntu.com/1441528/ if there are issues still.
I also tried to do it again by a Boot-Repair-Disk this time and now I am getting the following error:
error: couldn't read file error: you need to load the kernel first
The boot-repair-disk gave me this link: http://paste2.org/p/2609703 if there are further issues.