What's the current SU password on version 15.04?

Question

I want to change the SU password but it wont let me, what's the current SU password on version 15.04? It is a new install.

Answer 1

it is the same as your user password, type:

sudo su

and enter your user password

root account is disabled in ubuntu for security purposes (there is no root password)

Answer 2

There is no root password, but you can login as root with either sudo su or sudo -i.

After that, you can set the root password with passwd if you so wish.