su root not working

Posted January 11, 2021 822 views
UbuntuDigitalOcean Droplets


I tried to create a droplet, I went with the default settings, I picked an SSH key.

I then logged into it fine with the SSH key I picked.

I then created a new user.

$adduser bob<ENTER>

$su bob<ENTER>

That was fine.

But now I can’t $su root

If I try blank password it won’t let me. And I didn’t set a password for root. I only did default settings.

How am I meant to do it?


edited by bobbyiliev

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2 answers

got it had to do the passwd command and set a password for root.

Hi there,

Another option would be to add your new bob user to the sudoers group. That way when you are logged in as the new bob user you could run sudo -i, type the password for the bob user and this would log you in as the root user.

That way you would not have to set a password for the root user.

You can take a look at this quick video on how to do that here:


  • thanks, I did that too ‘cos otherwise I couldn’t run sudo from bob. I wanted to be able to do su root, and to be able to do eg sudo ls, from bob.