E3473 Cmd Rej: The last active serial port cannot be inhibited

One serial port must remain active and available for login and must be of the terminal type capable of entering commands.

Recovery

1. Display all the terminals. Enter the rtrv-trm command.
2. Re-enter the inh-trm command that generated this error message for appropriate terminals.
   Contact My Oracle Support if this error message appears again. See My Oracle Support (MOS).