I recently switched to Ubuntu from Windows 10. I had a semi-fresh install, I had Ubuntu 18.10 with a minimal install. I of course downloaded some apps and everything was working great. Then I remembered I had a couple important files on my windows install. So I powered my machine off, then plugged my windows SSD into a sata port and turned it back on. However instead of the normal Ubuntu splash/loading screen, it is plain text that says "Ubuntu Budgie 18.10". Then it boots into emergency mode. I press ctrl-d to continue, and it puts me into a tty login screen. GNOME isn't gone, I can still boot into it, by using this command:

sudo mount -o remount,rw /

However internet doesn't work, so I have to manually restart the network-manager service in terminal, and who knows how many other services are broken. Having to manually open everything isn't a big deal to me, it's just mildly annoying. I'm just concerned because it means there are probably other errors that will come down the road from this, and I would like to fix this as soon as I can.

Please keep in mind, I'm nearly a complete noob to the linux terminal. All I know are apt-get commands, what sudo does, and basic navigation of file systems.

(If it matters) Specs: CPU: AMD A10-5800K GPU: GeForce GTX 1050 Ti (With proprietary drivers) RAM: 16GB (800MHz DDR3)