I'm running on Debian 9 so I can't use iMPACT to connect with my NEXYS3. I downloaded the virtual machine ISE_S6_VM based on Red Hat Linux server 6.4 and the connection works well now.
But I need to communicate with the serial UART port. I want to install MINICOM but I don't have the root password. Does anyone can help me ? Maybe by choosing another way to transmit data via the serial port but I can't install anything without the password.