When I install Ubuntu, it never shows an option to set a password, yet there is a password when trying to log in to the admin account and when I try to install packages. I can't change the password in Root because when I try to it says "Authentication manipulation token error". When I try to fix the shadow password thing in root it says access denied.
You aren't supposed to add a password for the root account. We have something called the sudo mechanism to handle that. Instead, you add users to the
When you're being asked for a password when installing things, etc, it is your own password you should use. This way, it is possible to enable others to do administrative tasks without having to share passwords and keys. It is also configurable to allow someone to run a specific command as root, but not others, but you won't normally touch that.
The first user you created is by default the admin account.
You can use root privilege to run commands/applications by adding
In any case, you can change root password by following procedure: