Hi,
for server systems it isn’t necessary to start a graphical user interface because they usually run headless.
Pre systemd system set their default (init) runlevel in /etc/inittab. For the most linux distributions the runlevel for text console/non graphical login was 3.
Systemd introduces target concept. If you host want to boot to text console set the default target to multi-user:
1 2 | root@debdev ~ # systemctl get-defaultgraphical.target |
1 2 3 | root@debdev ~ # systemctl set-default multi-user.targetroot@debdev ~ # systemctl get-defaultmulti-user.target |
Michael