How to enable the root account in Ubuntu 20.04

After Ubuntu 20.04 is installed, there is no root account login permission by default. Follow the steps below to complete the root account login in one step. Do you think it is very convenient after reading this?

1. First Step

Log in to the system as a normal user and create a password for the root user

Enter the command in the terminal: sudo passwd root

Then enter the set password twice, and the root user password is set (note that the password is not echoed in Linux system)

2. Step 2

Modify the 50-ubuntu.conf file

Enter the command in the terminal: sudo gedit /usr/share/lightdm/lightdm.conf.d/50-ubuntu.conf

Add the following two lines to the end of the file:

greeter-show-manual-login=true
all-guest=false 

3. Step 3

Modify the gdm-autologin file

Enter the command in the terminal: sudo gedit /etc/pam.d/gdm-autologin to open the file

Add # in front to comment out the third line auth required pam_succeed_if.so user != root quiet_success

4. Step 4

Modify the gdm-password file

Enter the command in the terminal: sudo gedit /etc/pam.d/gdm-password to open the file

Add # in front to comment out the third line auth required pam_succeed_if.so user != root quiet_success

5. Step 5

Modify the /root/.profile file

Enter the command in the terminal: sudo gedit /root/.profile to open the file

Change the line mesg n 2> /dev/null || true at the end of the file to
tty -s&&mesg n || true


6. Final Step

Please log out and log in again.

Select Not Listed?
Then enter root and the password you set previously to log in successfully

Click to get reference source

The next article will share with you how to copy and paste text from the Windows operating system to the Linux system under VMware virtual machine

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