I previously updated linux time to 2020.3 but as soon as I entered the GUI mode login menu, there was only one user without root access, so I tried entering a new username with the contents of "root" and the password that I entered when I set up on sudo passwd I still It can't, but if I enter sudo su in a terminal with a root user, the password works
. but I want to enter my root user so I can more freely see the directory in the root user