I am new to linux and I wanted to start learning it. So, I had installed debian. But while installation, I forgot to give username and password for login and also for root.
Is it possible to log in to debian now without the username and password being set during installation?
If that is not possible, how do I re-install debian. Shall I just do it the same way I did the last time(by inserting the DVD?)?
If I re-install then during partitioning should I free both the main partition and the "Swap" partition or is it enough if I just delete the main partition.