Comment 3 for bug 1805702

My officemate just ran into this while upgrading to 18.10, and changing

update-rc.d decnet start\ 39\ S\ .\ \ stop\ 11\ 1\ . >/dev/null

to (as I saw on my 18.04 system, where installing dnet-common *did* work)

update-rc.d decnet start 39 S . stop 11 1 . >/dev/null

seems to have resolved it; installation then completes as follows:

Preconfiguring packages ...
dnet-common: Skipping configure of DECnet
Selecting previously unselected package dnet-common.
(Reading database ... 1140653 files and directories currently installed.)
Preparing to unpack .../dnet-common_2.65_all.deb ...
Unpacking dnet-common (2.65) ...
Processing triggers for ureadahead (0.100.0-20) ...
Processing triggers for systemd (237-3ubuntu10.9) ...
Processing triggers for man-db (2.8.3-2ubuntu0.1) ...
Setting up dnet-common (2.65) ...
dnet-common: Skipping configure of DECnet
update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults
update-rc.d: warning: start runlevel arguments (S) do not match decnet Default-Start values (2 3 4 5)
update-rc.d: warning: stop runlevel arguments (1) do not match decnet Default-Stop values (0 1 6)
Processing triggers for systemd (237-3ubuntu10.9) ...
Processing triggers for ureadahead (0.100.0-20) ...