Also, more recent versions of grub and grub-pc have changed the way they handle getting update-grub to be called (no longer using the postinst_hook mechanism in /etc/kernel-img.conf) so that this failure mode won't happen.
Also, more recent versions of grub and grub-pc have changed the way they handle getting update-grub to be called (no longer using the postinst_hook mechanism in /etc/kernel- img.conf) so that this failure mode won't happen.