debconf: (No usable dialog-like program is installed, so the dialog based frontend cannot be used)

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OC: Debian 8 Jessie

Симптомы

# apt-get install some_program
debconf: unable to initialize frontend: Dialog
debconf: (No usable dialog-like program is installed, so the dialog based frontend cannot be used. at /usr/share/perl5/Debconf/FrontEnd/Dialog.pm line 76.)
debconf: falling back to frontend: Readline

Решение

apt-get install dialog

или так:

apt-get install whiptail