I am dual booting ubuntu and windows 10 on my laptop. I recently installed the plex server and followed the instructions on this link to fix a permissions issues I was having. Now however, ubuntu will not boot unless the hard drive is plugged in. When it is not plugged in, the purple ubuntu screen comes up and then goes to a black screen that says "welcome to emergency mode". I try pressing ctrl-D to continue but it just goes back to the emergency mode screen.
Thanks in advance!