Comment 3 for bug 878705

Also happening on Lucid 64 bit.

Preconfiguring packages ...
(Reading database ... 223388 files and directories currently installed.)
Preparing to replace unattended-upgrades 0.55ubuntu5 (using .../unattended-upgrades_0.55ubuntu6_all.deb) ...
Unpacking replacement unattended-upgrades ...
Processing triggers for man-db ...
Processing triggers for ureadahead ...
ureadahead will be reprofiled on next reboot
Setting up unattended-upgrades (0.55ubuntu6) ...
update-rc.d: warning: unattended-upgrades start runlevel arguments (none) do not match LSB Default-Start values (0 6)
update-rc.d: warning: unattended-upgrades stop runlevel arguments (0 6) do not match LSB Default-Stop values (none)

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 10.04.3 LTS
Release: 10.04
Codename: lucid