when opening Disk Manager, it asks me for my root (su) password, but during the installation I wasn’t asked one. My default user password doesn’t work. What should I do?
sudo passwd root it will ask for your password and then for the one you want for root
If doing this, make sure that the root password is strong. Many Linux systems have no root password in such a way that directly logging in as root is not possible at all. By putting a password on it, you may be opening up the possibility of someone directly logging in as root i.e. you are slightly weakening your security (or greatly weakening your security if the root password is weak).
I heard that PureOS enables sudo by default… This wouldn’t make sense, or am I missing something? I mean why would they include a program in the install that only works by modifying the system?