Looking for logging into the Not Able To As Root In Ubuntu site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Not Able To As Root In Ubuntu site. After that you can login as usual with your login credentials.
https://unix.stackexchange.com/questions/109015/cant-login-to-root-user
https://askubuntu.com/questions/126286/unable-to-login-as-root-from-the-login-screen-even-though-i-have-a-root-account
https://ubuntuforums.org/showthread.php?t=2306967
https://stackoverflow.com/questions/18395622/remote-login-as-root-in-ubuntu
https://www.tecmint.com/enable-and-disable-root-login-in-ubuntu/
https://help.ubuntu.com/community/RootSudo
https://serverfault.com/questions/59890/cannot-login-as-root
https://superuser.com/questions/402036/not-able-to-login-in-ubuntu-box-with-root-password
https://linuxconfig.org/how-to-login-as-root-user-on-ubuntu-xenial-xerus-16-04-linux-desktop
https://superuser.com/questions/1114398/cannot-login-to-any-user-on-ubuntu-16-04-1-other-than-guest
https://www.liquidweb.com/kb/how-to-add-a-user-and-grant-root-privileges-on-ubuntu-16-04/
https://www.reddit.com/r/Ubuntu/comments/8fo588/i_cant_login_after_installing_1804/