When you get initram, type exit.
It gives you an menu with options. Select fsck.
Let it scan the hard drive. When its done hit the return key and it will immediately take you to login screen.
- Edit /etc/default/grub
- Add "rootdelay=10" at GRUB_CMDLINE_LINUX_DEFAULT (i.e. GRUB_CMDLINE_LINUX_DEFAULT="rootdelay=10 quiet") and save document
- Then issue a the command: update-grub