What is the password for root after Ubuntu is installed?

&http://www.aliyun.com/zixun/aggregation/37954.html ">NBSP; What is the password for root after I install it? How do I use the root account? When you install Ubuntu for the first time, the root account is not available. The first user created during installation has administrative power over the system, and can run the program like root through sudo. Use only its normal user password.

For example: sudo apt update if you want to use the root account as a traditional UNIX style. You can enter sudo passwd root. That will allow you to become root by su or login on the console. If you need a shell with root privileges, run sudo-s.

"Sudo" for all users will require a user password. If you create a new account, you may want to use the sudo command to add that account to the Admin group. If you want to use the sudo command, you do not need to enter a user password to add the account to the sudo group.