Hi I downloaded the updates required for ubuntu and then restarted the PC instead of the Pink grub screen . I got a black screen saying press TAB key for command lists. The command line had grub>. I am not able to see the ubuntu loading too . Can anyone help on this one ?
It seems that your grub file is corrupt. With boot-repair you will be able to resolve this problem. Look here: https://help.ubuntu.com/community/Boot-Repair