Normal user is promoted to root user

How can a common user become a root user after being promoted to a root user using a common user to log on to Linux? Perform the following operations: sudo gedit/etc/passwd, find the section describing the user, and change its id to 0. Save and log out of the user. log on to the user again. The user is already the root user. For example, in passwd, find the following line: lulipeng: x: 1000: 1000:,:/home/lulipeng: /bin/bash: Change the positions of both 1000 to 0. Note: Some strange problems may occur after the id is changed. The method for canceling the cancellation is as follows: 1. Enter sudo restart lightdm on the Terminal 2. Find the 'unlogin' option in the upper-right corner of the desktop 3. Press the power key directly.