package:grub-pc:2.02-2ubuntu8.7
Setting up grub-pc (2.02-2ubuntu8.7) ...
Gdk-Message: 19:36:32.569: frontend: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.

dpkg: error processing package grub-pc (--configure):
 installed grub-pc package post-installation script subprocess returned error exit status 1