ubuntu18.04配置root用户界面登陆

sudo vim /usr/share/lightdm/lightdm.conf.d/50-ubuntu.conf

greeter-session=unity-greeter
user-session=ubuntu
greeter-show-manual-login=true
allow-guest=false
autologin-user=root
autologin-user-timeout=0
autologin-session=lightdm-autologin

vim /root/.profile

将最后一行修改为tty -s && mesg n || true

sudo vim /etc/pam.d/gdm-autologin

注释掉下面的内容
auth requied pam_succeed_if.so user != root quiet success

sudo vim /etc/pam.d/gdm-password

注释掉下面的内容
auth requied pam_succeed_if.so user != root quiet success