I tried this before without success. I tried many other commands also.
A strange thing happen now. I still have the mint debian iso file here. Before, I tried LMDE through in live mode to get full performance. But now I tried in Oracle Virtualbox OSE. In Vbox, I was not asked for a password.
What I conclude is that something has changed in live mode of mint debian using USB.
Applications like the Universal USB Installer do not change the password behavior of the OS they install
It seems have happened now, with LMDE.
Universal USB Installer do not change the password behavior of the OS
I confess that I read about something related with this when I searched for password. But I stayed confused. Anyway, I will try again with USB universal and also burning the ISO in a DVD-RW.
Before, I tried only in pendrive because I wanted void possible errors of read that could happen if I tried the installation processes using an DVD-RW.