Updating 2.0 to Rolling -Black Screen

So I've been calmly using Kali for about 2 years and yesterday i tried to update from 2.0 to Rolling but it failed and instantly lost all access to the terminal.
I rebooted and then after the loading screen i dont even have the grub just a plain black screen.
Im able to log in single user mode and see my files but apt get update fails with “failure resolving http.kali.org” (im connected through Ethernet).Plus when i tried to change the DNS it says there’s no such file or directory when resolv.conf is clearly in the directory. Any ideas?

I would recommend to just backup your data and reinstall 2018.2. You'll save a lot of time and headaches

I would but when i try do copy files it says there's no such file or directory when the files are clearly there.