Cannot get the Login Screen sddm to work

[Ralf Mardorf]

On Sun, 14 Aug 2016 00:17:10 -0400, Dick Barmann wrote:
>then it would go to text. kububuntu 16.04 tty1

So those two steps

- Boot the Ubuntu Live CD.
- Press Ctrl-Alt-F1

already worked.

Once in text mode, you could use the command line to chroot as
described by https://help.ubuntu.com/community/LiveCdRecovery , IOW
continue

- sudo mount /dev/sda2 /mnt
                 #^^^^ or what ever else your / partition is
                 #FWIW I prefer to first create a dir in /mnt, but the
                 #howto does use /mnt directly
                 #I guess you don't need to bind anything, but I don't
                 #no for sure
- sudo mount --bind /dev /mnt/dev
- sudo mount --bind /proc /mnt/proc
- sudo mount --bind /sys /mnt/sys
- sudo chroot /mnt                
- systemctl disable lightdm
                 #to disable lightdm
- systemctl enable sddm
                 #to enable sddm

Regards,
Ralf