[URGENT!] Can't Boot: "Failed to isolate default target, freezing"
After executing "apt-get upgrade" in Terminal, the command was doing what it was supposed to do, but after a while, I come back to see it's progress and it was frozen. I shut it down, using the Virtual Machine Tools, then when I try to start it, it starts normally to this Screen:
However, every time I select the first option, this pops up:
It really bothers me, as I've got loads of files into my System. Is there a way to fix this error? I haven't been able to find any solutions out there on the internet.
Thank you in advance
