Problema de boot no Ubuntu 16.04 (initramfs)

Na hora de ligar, meu ubuntu manda a mensagem:
...
/dev/sda1: unexpeted inconsistency; run fsck MANUALLY.
(i.e., without -a or -p options)
fsck exited with status code 4
the root filesystem on /dev/sda1 requires a manual fsck

BusyBox v1.22.1 (ubuntu 11.22.0-15ubuntu1) built-in shell (ash)
enter 'help' for a list of buit-in commands.

(initramfs)

Rode o comando fsck, veja neste vídeo como usá-lo: https://www.youtube.com/watch?v=9wcQEwyvVUE