Select boot option: First, select Debian GNU/Linux from the boot menu.
Enter encryption password: You will be prompted to enter the encryption password that you set during installation. In our example: Hello42bcn.
User login: After unlocking the encrypted drive, enter the username and password you created during installation. In our example: username gemartin and password Hola42spain.
Once logged in successfully, you'll have access to your Debian system and can proceed with the next configuration steps.