Comment 27 for bug 1455097

Verified 1.1ubuntu1.18.04.7~16.04.2 on Xenial, now without acpdid:

ubuntu@ip-172-31-3-29:~$ sudo service apt-daily-upgrade start & sleep 1; tail -f /var/log/unattended-upgrades/unattended-upgrades.log
[1] 1607
2019-04-09 20:58:27,975 INFO Initial blacklisted packages:
2019-04-09 20:58:27,975 INFO Initial whitelisted packages:
2019-04-09 20:58:27,975 INFO Starting unattended upgrades script
2019-04-09 20:58:27,975 INFO Allowed origins are: o=Ubuntu,a=xenial, o=Ubuntu,a=xenial-security, o=UbuntuESM,a=xenial
2019-04-09 20:58:31,986 INFO Packages that will be upgraded: busybox-initramfs busybox-static file libmagic1 libpam-systemd libpolkit-agent-1-0 libpolkit-backend-1-0 libpolkit-gobject-1-0 libsystemd0 libudev1 linux-aws linux-headers-aws linux-image-aws ntfs-3g policykit-1 snapd systemd systemd-sysv ubuntu-core-launcher udev wget
2019-04-09 20:58:31,987 INFO Writing dpkg log to /var/log/unattended-upgrades/unattended-upgrades-dpkg.log
2019-04-09 20:58:49,942 WARNING SIGTERM received, will stop
2019-04-09 20:58:52,944 WARNING SIGTERM received, will stop
2019-04-09 20:58:53,159 WARNING SIGNAL received, stopping

ubuntu@ip-172-31-3-29:~$ cat /var/log/unattended-upgrades/unattended-upgrades-dpkg.log .
Log started: 2019-04-09 20:58:35
(Reading database ... 76460 files and directories currently installed.)
Preparing to unpack .../libpolkit-gobject-1-0_0.105-14.1ubuntu0.5_amd64.deb ...
Unpacking libpolkit-gobject-1-0:amd64 (0.105-14.1ubuntu0.5) over (0.105-14.1ubuntu0.4) ...
Processing triggers for libc-bin (2.23-0ubuntu11) ...
Setting up libpolkit-gobject-1-0:amd64 (0.105-14.1ubuntu0.5) ...
Processing triggers for libc-bin (2.23-0ubuntu11) ...
Log ended: 2019-04-09 20:58:37
...
ubuntu@ip-172-31-3-29:~$ dpkg -l unattended-upgrades | cat
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-===================-==========================-============-===========================================
ii unattended-upgrades 1.1ubuntu1.18.04.7~16.04.2 all automatic installation of security upgrades
ubuntu@ip-172-31-3-29:~$ yes no | sudo apt upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following NEW packages will be installed:
  linux-aws-headers-4.4.0-1079 linux-headers-4.4.0-1079-aws linux-image-4.4.0-1079-aws
  linux-modules-4.4.0-1079-aws
The following packages will be upgraded:
  apt apt-transport-https apt-utils cloud-init distro-info-data file grub-common grub-legacy-ec2 grub-pc
  grub-pc-bin grub2-common libapt-inst2.0 libapt-pkg5.0 liblxc1 libmagic1 libpam-systemd libsystemd0 libudev1
  linux-aws linux-headers-aws linux-image-aws login lxc-common ntfs-3g passwd policykit-1 python-apt-common
  python3-apt rsyslog snapd systemd systemd-sysv ubuntu-core-launcher udev uidmap
35 upgraded, 4 newly installed, 0 to remove and 0 not upgraded.
Need to get 0 B/54.7 MB of archives.
After this operation, 118 MB of additional disk space will be used.
Do you want to continue? [Y/n] Abort.
ubuntu@ip-172-31-3-29:~$ dpkg -l acpid
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-======================-================-================-==================================================
rc acpid 1:2.0.26-1ubuntu amd64 Advanced Configuration and Power Interface event d
ubuntu@ip-172-31-3-29:~$ journalctl -a
...
Apr 09 20:58:49 ip-172-31-3-29 kernel: PM: Hibernation mode set to 'platform'
Apr 09 20:58:53 ip-172-31-3-29 systemd[1]: Started Daily apt upgrade and clean activities.
Apr 09 20:58:53 ip-172-31-3-29 sudo[1607]: pam_unix(sudo:session): session closed for user root
Apr 09 20:58:55 ip-172-31-3-29 systemd-sleep[8427]: Suspending system...
Apr 09 20:59:46 ip-172-31-3-29 kernel: PM: Syncing filesystems ... done.
Apr 09 20:59:46 ip-172-31-3-29 kernel: Freezing user space processes ... (elapsed 0.000 seconds) done.
...