22 hours ago
After a difficult update to 18.04 my system is booting into a tty and not into the gnome shell. I found that lightdm was still installed and wanted to start. I deinstalled lightdm and when I do "sudo systemctl start gdm", gnome starts and all is ok. How can I correct this so that my system start normally? Do I need a target for SystemD?
14 hours ago
I did "sudo apt install --reinstall gdm" and it was fixed.