raspbian 默认从控制台启动

vim /etc/X11/default-display-manager

/user/sbin/lightdm                                 ；将改行注释

reboot

[FAILED] Failed to start Light Display Manager.

See 'systemctl status lightdm.service' for details.

systemctl status lightdm.service

lightdm.service - Light Display Manager

  Loaded: loaded (/lib/systemd/system/lightdm.service; static)

  Active: failed (Result: start-limt) since Thu 2016-07-28 21:24:24 CST; 2min 2s ago

    Docs: man:lightdm(1)

  Process: 646 ExecStartPre=/bin/sh -c [ "$(cat /etc/X11/default-display-manager 2>dev/null)" = "/usr/sbin/lightdm" ] (code=exited, status=1/FAILURE)