Set the root user logon GUI in Ubuntu 13.04

The GUI for setting root User Logon in Ubuntu 13.04 is similar to that for using root in Ubuntu 12.10.

Related reading: Set the root user logon GUI in Ubuntu 12.10

First switch to the root user, sudo su root

1. First set a root password, passwd root

2. Back up Lighttpd.

Cp-p/etc/lightdm. conf/etc/lightdm. conf. bak

3. Edit lightdm. conf.

Gedit/etc/lightdm. conf

5. Add:

Greeter-show-manual-login = true

After modification:

[SeatDefaults]
Greeter-session = unity-greeter
User-session = ubuntu
Greeter-show-manual-login = true

Restart logon. You can enter root.

NOTE: If there is no sound after the root user logs on, check again as follows:

The root cause of this problem is that pulseaudio is not started after root logon.

Login as root, then:

Add root to the pulse-access group:

Usermod-a-G pulse-access root

Start pulseaudio

Pulseaudio -- start -- log-target = syslog

My lightdm. conf is as follows:

[SeatDefaults]
Autologin-guest = false # logon from guest is not allowed
Autologin-user = root # automatically log on as root
Autologin-user-timeout = 0
Autologin-session = lightdm-autologin
User-session = ubuntu
Greeter-session = unity-greeter
Greeter-show-manual-login = true # manually enter the user name and password for logging on to the system