That looks familiar to me. I had it happen once on 10.10, where something got FUBAR'd and my / partition was reporting as being 12TB in size when the partition was only 20GB. I shut down with the intention to reboot and see if that cleared up, but GNU Grub gave me the "No Boot Device Found" error. I was able to boot from my Ubuntu-on-a-stick, but that didn't solve the problem. So I just re-formatted my / and swap partitions, reinstalled, and have been peachy ever since.
(If you don't have separate /home partition, a) GET ONE!, and b) BACKUP!)
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The Master said: "It is all in vain! I have never yet seen a man who can perceive his own faults and bring the charge home against himself."
>Analects: Book V, Chaper XXVI
(If you don't have separate /home partition, a) GET ONE!, and b) BACKUP!)
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The Master said: "It is all in vain! I have never yet seen a man who can perceive his own faults and bring the charge home against himself."
>Analects: Book V, Chaper XXVI