Setting up grub-pc (2.02~beta2-36ubuntu3.6) ...
dpkg: error processing package grub-pc (--configure):
 subprocess installed post-installation script returned error exit status 10
Setting up unattended-upgrades (0.90ubuntu0.3) ...
dpkg: error processing package unattended-upgrades (--configure):
 subprocess installed post-installation script returned error exit status 10
Errors were encountered while processing:
 grub-pc
 unattended-upgrades
E: Sub-process /usr/bin/dpkg returned an error code (1)