package:libc6:2.23-1ubuntu1
De-configuring libc6:amd64 (2.23-1ubuntu1) ...
Checking for services that may need to be restarted...
Checking init scripts...
open3: exec of whiptail --backtitle Package configuration --title Configuring libc6 --output-fd 11 --nocancel --msgbox Running services and programs that are using NSS need to be restarted, 
otherwise they might not be able to do lookup or authentication any 
more. The installation process is able to restart some services (such as
ssh or telnetd), but other programs cannot be restarted automatically. 
One such program that needs manual stopping and restart after the glibc 
upgrade by yourself is xdm - because automatic restart might disconnect 
your active X11 sessions.

This script detected the following installed services which must be 
stopped before the upgrade: postgresql

If you want to interrupt the upgrade now and continue later, please 
answer No to the question below. 19 77 failed at /usr/share/perl5/Debconf/FrontEnd/Dialog.pm line 226.
dpkg: error processing archive /tmp/apt-dpkg-install-VKNpBS/16-libc6_2.24-0ubuntu1_i386.deb (--unpack):
 subprocess new pre-installation script returned error exit status 40