Comment 2 for bug 1629631

Further analysis shows that the system has an (empty?!?) file runmbservice in the /etc/init.d/ directory, plus links in the rcX.d directories:

root@bto03:~# find /etc/ | grep runmbbservice | xargs ls -ld
-rwxr-xr-x 1 root root 0 Sep 28 11:44 /etc/init.d/runmbbservice
lrwxrwxrwx 1 root root 25 Sep 28 11:44 /etc/rc2.d/K10runmbbservice -> /etc/init.d/runmbbservice
lrwxrwxrwx 1 root root 25 Sep 28 11:44 /etc/rc2.d/S99runmbbservice -> /etc/init.d/runmbbservice
lrwxrwxrwx 1 root root 25 Sep 28 11:44 /etc/rc3.d/K10runmbbservice -> /etc/init.d/runmbbservice
lrwxrwxrwx 1 root root 25 Sep 28 11:44 /etc/rc3.d/S99runmbbservice -> /etc/init.d/runmbbservice
lrwxrwxrwx 1 root root 25 Sep 28 11:44 /etc/rc4.d/K10runmbbservice -> /etc/init.d/runmbbservice
lrwxrwxrwx 1 root root 25 Sep 28 11:44 /etc/rc4.d/S99runmbbservice -> /etc/init.d/runmbbservice
lrwxrwxrwx 1 root root 25 Sep 28 11:44 /etc/rc5.d/K10runmbbservice -> /etc/init.d/runmbbservice
lrwxrwxrwx 1 root root 25 Sep 28 11:44 /etc/rc5.d/S99runmbbservice -> /etc/init.d/runmbbservice

Removing this (useless?!?) file and links turns the "apt-get upgrade" into this:

root@bto03:~# apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
3 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] Y
Setting up udev (229-4ubuntu10) ...
addgroup: The group `input' already exists as a system group. Exiting.
update-initramfs: deferring update (trigger activated)
Setting up ubuntu-drivers-common (1:0.4.17.2) ...
Setting up ifupdown (0.8.10ubuntu1.1) ...
Processing triggers for initramfs-tools (0.122ubuntu8.1) ...
update-initramfs: Generating /boot/initrd.img-4.4.0-36-generic
W: Possible missing firmware /lib/firmware/i915/kbl_dmc_ver1.bin for module i915_bpo
W: Possible missing firmware /lib/firmware/i915/skl_guc_ver6.bin for module i915_bpo
root@bto03:~#