with a live session of Ubuntu 18.04 how to access all folders with root previliges those are inside a disk having Ubuntu 18.04 Installed.?

Question

I am new to Ubuntu. But interested to know better. Ubuntu 18.04 was successfully running. I have changed something in the root folder files during some trials, my Ubuntu 18.04 is stuck before gdm shows.

1. I have run live session.
2. I can see all the folders in my disk where Ubunu 18.04 was running successfully.
3. I am not able to delete or copy paste.

How can i get root privileges?

Answer 1

In the live session, you can open a terminal window and run commands with the prefix sudo, for example

sudo copy path2/file1 path2/file2

to copy file1 with root privileges.

In standard Ubuntu you can open a terminal window with the hotkey combination

ctrl + alt + t

In a live session you need no password to run via sudo, but in an installed system, you need the password for your user ID to run via sudo.